ZIB

1

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Zur Kenntnis der Diacyl-polysulfide (1954)

Böhme, Horst ; Zinner, Gerwalt

Weinheim : Wiley-Blackwell

Liebigs Annalen 585 (1954), S. 150-153

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545850115

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2

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Zur Kenntnis der Amino- und Diamino-anthrachinon-dicarbonsäuren (1954)

Hopff, Heinrich ; Fuchs, Julius ; Eisenmann, Karl Heinz

Weinheim : Wiley-Blackwell

Liebigs Annalen 585 (1954), S. 161-182

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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3

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Über innermolekulare Umlagerungen in der Bicyclo-[1,2,2]-heptan-Reihe. IV. Die Hydratisierung des Norcamphens und 2-Methyl-bicyclo-[1,2,2]-heptens-(2) und die diastereomeren 1-Methyl-norborneole (1954)

Beckmann, Siegfried ; Schaber, Roland

Weinheim : Wiley-Blackwell

Liebigs Annalen 585 (1954), S. 154-160

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545850116

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4

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Umsetzung einiger aliphatischer Nitroverbindungen mit Grignard-Verbindungen Über aliphatische Nitroverbindungen VII (1954)

Dornow, Alfred ; Gehrt, Hans ; Ische, Friedrich

Weinheim : Wiley-Blackwell

Liebigs Annalen 585 (1954), S. 220-229

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545850121

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5

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Kernmethylierung von Phloracetophenon Über Bestandteile von Filix mas III. Mitteilung, W. Rield, Liebigs ann. Chem. 585, 32 (1954). und über Hopfenbitterstoffe VIIVI. Mitteilung, W. Rield, Liebigs ann. Chem. 585, 38 (1954). (1954)

Riedl, Wolfgang ; Risse, Klaus Heinz

Weinheim : Wiley-Blackwell

Liebigs Annalen 585 (1954), S. 209-219

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 2 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545850120

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6

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Über eine Ringschlußreaktion bei der Entschwefelung mit Raney-Nickel (1954)

Birch, S. F. ; Dean, R. A.

Weinheim : Wiley-Blackwell

Liebigs Annalen 585 (1954), S. 234-240

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545850123

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7

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Zur Kenntnis aliphatischer Carbodiimide VII. Mitt.VI. Mitteilung: E. Schmidt u. M. Seefelder, Liebigs Ann. Chem. 571, 83 (1951); D.P. 823445 ausg. 3. 12. 1951; A. P. 2 656 383 ausg. 20. 10. 1953. (1954)

Schmidt, Erich ; Zaller, Franz ; Moosmüller, Fritz ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 585 (1954), S. 230-234

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

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URL: http://dx.doi.org/10.1002/jlac.19545850122

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8

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Zur Kenntnis organischer Sulfonsäuren V. Mitteilung Synthesen des 1,4-Butansultons (1954)

Helberger, Johann Heinrich ; Lantermann, Hans

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 158-164

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545860110

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9

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Benzyläther der Ellagsäure und Hexaoxy-diphensäure XVI. Mitteilung über natürliche Gerbstoffe (1954)

Schmidt, Otto Th. ; Voigt, Hans ; Puff, Walter ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 165-178

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545860111

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10

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Über Ommochrome, II. Mitteilung. Alkalischer und fermentativer Abbau von Xanthommatin und Rhodommatin. Alkalischer Abbau der Kynurenin-Seitenkette (1954)

Butenandt, Adolf ; Schiedt, Ulrich ; Biekert, Ernst

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 229-239

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 3 Ill.

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11

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Untersuchungen über Polyfructosane XXXVII. Über das Alopecurin P (1954)

Schlubach, Hans Heinrich ; Holzer, Klaus ; Gassmann, Luis

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954), S. 107-110

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545870205

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12

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Untersuchungen über Polyfructosane XXXVI. Über das Avenarin F (1954)

Schlubach, Hans Heinrich ; Gassmann, Luis

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954), S. 103-106

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545870204

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13

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Untersuchungen über Polyfructosane XXXVIII. Über den Kohlenhydratstoffwechsel in Lolium perenne (1954)

Schlubach, Hans Heinrich ; Holzer, Klaus

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954), S. 111-124

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 12 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545870206

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14

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Untersuchungen über Acetylene IX: Die radikalkatalysierte Anlagerung von Aldehyden an Acetylene (1954)

Schlubach, Hans Heinrich ; Franzen, Volker ; Dahl, Ernst

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954), S. 124-131

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545870207

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15

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Darstellung schwefel-haltiger Indol-Derivate (1954)

Wieland, Theodor ; Weiberg, Otto ; Fischer, Edgar ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954), S. 146-161

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 5 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545870209

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16

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Synthesen einiger weiterer S-Acylverbindungen, insbesondere des Glutathions (1954)

Wieland, Theodor ; Köppe, Herbert

Weinheim : Wiley-Blackwell

Liebigs Annalen 588 (1954), S. 15-23

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545880103

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17

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Über die Alkaloide aus Calebassen-Curare VIII. Zur Struktur von C-Toxiferin II (1954)

Wieland, Theodor ; Fritz, Helmut ; Hasspacher, Klaus ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 588 (1954), S. 1-14

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

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18

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Synthesen in der Carotinoid-Reihe XXX1). Totalsynthese des d,l-α-Carotins (1954)

Inhoffen, Hans Herloff ; Schwieter, Ulrich ; Raspé, Gerhard

Weinheim : Wiley-Blackwell

Liebigs Annalen 588 (1954), S. 117-125

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

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19

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Die Synthese des 3-(N′-Methyl-2′-piperidyl)chinolizidin (1954)

Winterfeld, Karl ; Wald, Günther ; Rink, Melanie

Weinheim : Wiley-Blackwell

Liebigs Annalen 588 (1954), S. 125-130

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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20

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Additionsreaktionen der NN-Doppelbindung II Der Chemismus einiger weiterer Reaktionen des Azodicarbonesters (Mit 1 Figur im Text) (1954)

Huisgen, Rolf ; Jakob, Franz

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954), S. 37-54

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 1 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545900103

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21

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Untersuchungen über Benzimidazole (1954)

Jerchel, Dietrich ; Kracht, Manfred ; Krucker, Karl

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954), S. 232-241

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 4 Tab.

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URL: http://dx.doi.org/10.1002/jlac.19545900305

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22

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Halogenierte Bis-salicylsäureamide und -salicylidenverbindungen (1954)

Jerchel, Dietrich ; Oberheiden, Helmut

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954), S. 242-248

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 2 Tab.

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URL: http://dx.doi.org/10.1002/jlac.19545900306

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23

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Berichtigungen (1954)

Weinheim : Wiley-Blackwell

Liebigs Annalen 585 (1954), S. 240-240

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

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URL: http://dx.doi.org/10.1002/jlac.19545850124

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24

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Masthead (1954)

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954)

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545860101

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25

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Mittlere Ringe III. Eigenschaften und Reaktionen der 1,2-Benz-lactame (1954)

Huisgen, Rolf ; Ugi, Ivar ; Brade, Heinz ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 30-51

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 7 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545860103

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26

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Mittlere Ringe II. Sterische Hinderung der Mesomerie in 1,2-Benzo-cyclen-3-onen und verwandten Verbindungen (1954)

Huisgen, Rolf ; Rapp, Walter ; Ugi, Ivar ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 1-29

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 7 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545860102

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27

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Zum Radikalzerfall des Phenyl-azo-triphenylmethans (1954)

Huisgen, Rolf ; Nakaten, Herbert

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 70-83

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 1 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545860105

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28

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Mittlere Ringe IV Darstellung und Eigenschaften der 1,2,3,4-Benzo-cycla-1,3-dienone-(5) (1954)

Huisgen, Rolf ; Rapp, Walter ; Ugi, Ivar ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 52-69

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 5 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545860104

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29

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Nitroso-acyl-amine und Diazo-ester IX Die Jacobsonsche Indazolsynthese und die Konfiguration der Diazo-ester (1954)

Huisgen, Rolf ; Nakaten, Herbert

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 84-109

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 1 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545860106

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30

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Zur Kenntnis organischer Sulfonsäuren IV. Mitteilung Die Alkoholyse der Sultone; Zusammensetzung des auf dem Weg der Sulfochlorierung von 1-Chlorbutan dargestellten Butansultons (1954)

Helberger, Johann Heinrich ; Heyden, Joachim Rudi ; Winter, Heinz

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 147-157

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 12 Tab.

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URL: http://dx.doi.org/10.1002/jlac.19545860109

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31

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Über Äthylidenverbindungen von Glucose und Galaktose und Galaktose (1954)

Helferich, Burckhardt ; Porck, Alfred

Weinheim : Wiley-Blackwell

Liebigs Annalen 586 (1954), S. 239-244

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

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URL: http://dx.doi.org/10.1002/jlac.19545860118

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32

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Masthead (1954)

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954)

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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33

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Farbe und Konstitution I. Über Farbstoffe mit gekreuzten AbsorptionssystemenHerrn Professor Dr. H. Meerwein zum 75. Geburtstag gewidmet. (1954)

Hünig, Siegfried ; Schweeberg, Hans ; Schwarz, Hans

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954), S. 132-145

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 8 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545870208

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Aufbau des Tetrahydro-chinolizons und des „Bispidins“ Beiträge zur Synthese des CytisinsHerrn Prof. Dr. H. Meerwein zum 75. Geburtstage gewidmet. (1954)

Bohlmann, Ferdinand ; Ottawa, Norbert ; Keller, Renate

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954), S. 162-176

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 3 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545870210

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Masthead (1954)

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954)

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545870301

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36

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Polymethin-Farbstoffe I. Über Cyanomethine (1954)

Strell, Martin ; Braunbruck, Wambola B. ; Fühler, Wolfgang F. ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 587 (1954), S. 177-194

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 2 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545870302

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37

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Struktur und oxydativer Abbau von Dehydro-spartein (1954)

Rink, Melanie

Weinheim : Wiley-Blackwell

Liebigs Annalen 588 (1954), S. 131-144

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545880206

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Masthead (1954)

Weinheim : Wiley-Blackwell

Liebigs Annalen 588 (1954)

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545880301

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Die Einwirkung metallorganischer Verbindungen auf Strychnos-Basen (1954)

Bertho, Alfred ; Loebmann, Karl Heinrich

Weinheim : Wiley-Blackwell

Liebigs Annalen 588 (1954), S. 182-191

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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Zusammenhänge zwischen Konstitution, sterischen Verhältnissen und Ultraviolett-Spektren bei Derivaten des Brevifolins (1954)

Bernauer, Karl

Weinheim : Wiley-Blackwell

Liebigs Annalen 588 (1954), S. 230-238

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545880309

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Masthead (1954)

Weinheim : Wiley-Blackwell

Liebigs Annalen 589 (1954)

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/jlac.19545890101

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Synthese von N-StyrylpiperidinenVII. Mitteil. über N-Vinylpyridiniumsalze, VI. Mitteil. s. S. 26. (1954)

Kröhnke, Fritz ; Vogt, Isolde

Weinheim : Wiley-Blackwell

Liebigs Annalen 589 (1954), S. 52-54

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/jlac.19545890106

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Zur Bildung von Benzo-isoindolen (1954)

Wittig, Georg ; Ludwig, Heinz

Weinheim : Wiley-Blackwell

Liebigs Annalen 589 (1954), S. 55-76

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 4 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545890107

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Reduktionen mit Lithium-aluminium-hydrid in der Pyrrol-Reihe, 2. Mitteilung (1954)

Treibs, Alfred ; Derra-Scherer, Hildegard

Weinheim : Wiley-Blackwell

Liebigs Annalen 589 (1954), S. 188-195

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 1 Tab.

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Neuartige Reaktionen von Tetra-alkylpyrrolen (1954)

Treibs, Alfred ; Derra-Scherer, Hildegard

Weinheim : Wiley-Blackwell

Liebigs Annalen 589 (1954), S. 196-206

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

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URL: http://dx.doi.org/10.1002/jlac.19545890306

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46

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Über Ommochrome, IV. Mitteilung: Konstitution des Xanthommatins (1954)

Butenandt, Adolf ; Schiedt, Ulrich ; Biekert, Ernst ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954), S. 75-90

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 1 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545900105

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Masthead (1954)

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954)

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/jlac.19545900201

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Masthead (1954)

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954)

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/jlac.19545900301

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49

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Über eine neue Methode zur Darstellung von N,N′-alkylierten Indigofarbstoffen mittels technischer Indigosole 4. Mitteilung über Indigofarbstoffe (1954)

Pummerer, Rudolf ; Meininger, Fritz

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954), S. 173-194

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/jlac.19545900302

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50

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2,3-Diphenylen-tetrazoliumsalze und daraus entstehende Radikale (1954)

Jerchel, Dietrich ; Fischer, Hans

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954), S. 216-231

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ISSN: 0075-4617

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 2 Ill.

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URL: http://dx.doi.org/10.1002/jlac.19545900304

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Über die Absorptionsspektren von Indigofarbstoffen und ihren Salzen mit Säuren 5. Mitteilung über Indigofarbstoffe (1954)

Pummerer, Rudolf ; Meininger, Fritz ; Schrott, Georg ; [et al.]

Weinheim : Wiley-Blackwell

Liebigs Annalen 590 (1954), S. 195-215

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 7 Ill.

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52

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Zur Kenntnis der natürlichen Konvektion bei der Elektrolyse: Interferometrische Untersuchungen der Diffusionsschicht I (1954)

Ibl, N. ; Barrada, Y. ; Trümpler, G.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 583-597

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: An interferometric method for the study of cathode films in electrolytic baths is described. It is based on the principle of the Jamin interferometer, with a cylindrical lens for focusing the cell.

Additional Material: 7 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370222

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Zur Kenntnis der Zucker-osazone. 5 Mitteilung. Abbau von vier 3,6-Anhydro-hexose-phenylosotriazolen zu kristallisierten antipoden Dialdehyd-hydraten (1954)

Schreier, E. ; Stöhr, G. ; Hardegger, E.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 574-583

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Vier 3,6-Anhydro-hexose-phenylosotriazole, die aus Diels'schen Anhydro-hexose-phenylosazonen zugänglich sind, wurden mit Perjodsäure oxydiert. Als Oxydationsprodukte wurden optisch aktive Dialdehyd-hydrate in antipoden Formen und in kristallisiertem Zustand isoliert. Die Dialdehyd-hydrate, deren Konstitution durch Derivate und Abbauprodukte gesichert wurde, ermöglichten auf einfachstem Wege eine konfigurative Verknüpfung des asymmetrischen C-Atoms 3 der 3,6-Anhydro-triazole und bestätigten unsere früheren Konfigurationsbestimmungen. Acetylierung der Dialdehyd-hydrate führte unter Aufhebung der Asymmetrie ohne Verlust von C-Atomen zu einem für sämtliche 3,6-Anhydro-hexose-phenyloso-triazole gemeinsamen Monoacetyl-Derivat, für welches eine Acetoxy-1,4-dioxen-Struktur weitgehend bewiesen wurde.

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Darstellung von Aminosäure- und Peptid-Thioestern (1954)

Schwyzer, R.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 647-649

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Thiolesters of amino acids and peptides are prepared from their N-carbobenzoxy derivatives by cleavage of the carbobenzoxy group with HBr in glacial acetic acid.

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Über Diarylchlorphosphine (1954)

Weil, Th.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 654-655

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The action of PCl3 on arylzinkhalogenides in the cold gives diarylchlorophosphines in reasonable yields.

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URL: http://dx.doi.org/10.1002/hlca.19540370233

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Masthead (1954)

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954)

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370301

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Synthese der 3β, 16α-Dioxy-ätiansäure. Beitrag zur Kenntnis der Konfiguration der Hydroxylgruppe an C-16 im Gitoxigenin. Glykoside und Aglykone 126. Mitteilung (1954)

Moore, James A.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 659-667

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Die Synthese der 3β, 16α-Dioxy-ätiansäure (XVII) wird beschrieben. Der daraus bereitete amorphe 3β, 16α-Diacetoxy-ätiansäuremethyl-ester (XIX) war verschieden von dem 3β, 16β-Diacetoxyester (VII) aus Gitoxigenin (I). Die 16-ständige HO-Gruppe in Gitoxigenin (I) dürfte somit höchstwahrscheinlich β-Konfiguration besitzen.

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58

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Etude des dérivés benzoylés de l'indigo X (1954)

de Diesbach, Henri ; Frossard, Michel

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 701-705

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: On met au point les réactions du corps Dessoulavy avec le gaz ammoniac, la pyridine et l'aniline. Les résultats obtenus ne concordent pas toujours avec des essais faits antérieurement de différents cǒtés. La connaissance exacte de la constitution du corps Dessoulavy a permis d'attribuer de nouvelles formules aux dérivés obtenus par l'action de l'aniline sur ce corps, les résultats d'analyses ne permettant pas à eux seuls d'éclaircir leur constitution.

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URL: http://dx.doi.org/10.1002/hlca.19540370308

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Einfluss von Wasserstoff- und Alkali-Ionen auf den enzymatischen Abbau von Pektin verschiedenen Veresterungsgrades durch Pektinglykosidasen und Pektinglykosidasegemische (1954)

Schubert, Eduard

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 691-700

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: 1. Das pH-Wirkungsoptimum von roher Pektinase hängt ab vom Veresterungsgrad des verwendeten Substrates und von der enzymatischen Zusammensetzung der Pektinase. An 89-proz. verestertem Pek-tin und Apfelsaft wurde fur Pektinase, die cc- und @-Pektinglykosidase (PG) enthielt, ein Wirkungsoptimum bei pH 5,5 gefunden (or-PG). An niedrig (50-proz.) verestertem Pektin zeigte sich mit demselben PG-Gemisch ein Optimum bei pH 3,5 (b-PG).

Additional Material: 7 Ill.

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60

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Die Bestimmung der Konfiguration der am Pyrrolidinring Sauerstoffunktionen enthaltenden Tropanalkaloide. 5. Mitteilung über Stereochemie der Tropanalkaloide (1954)

Fodor, G. ; Tóth, J. ; Vincze, I.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 907-913

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: A new method for establishing the configurations of amino alcohols with a tertiary N-atom has been outlined.

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URL: http://dx.doi.org/10.1002/hlca.19540370334

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Masthead (1954)

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954)

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370401

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Komplexone XXV. Die polarographische Untersuchung von Austauschgleichgewichten. Neue Daten der Bildungskonstanten von Metallkomplexen der Äthylendiamin-tetraessigsäure und der 1,2-Diaminocyclohexan-tetraessigsäure (1954)

Schwarzenbach, G. ; Gut, R. ; Anderegg, G.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 937-957

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The polarograms of the metal complexes of Ethylenediaminetetraacetic Acid and of 1,2-Diaminocyclohexane-tetraacetic Acid are described. In a mixture, containing the metal complex MYv-4 as well as the uncomplexed cation M+v, it is usually possible to determine the concentration of the latter with high accuracy with the aid of a polarograph. Such measurements have been used for the determination of the ratios of the formation constants of the complexes of two metals M and M′, and from these ratios the individual formation constants of 49 complexes have been obtained. The best values of the formation constants (20°, μ = 0,1) of metal complexes are tabulated.

Additional Material: 4 Ill.

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URL: http://dx.doi.org/10.1002/hlca.19540370402

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63

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Über den sterischen Verlauf der säurekatalysierten Cyclisation in der Terpenreihe. Cyclisation der cis-7-Methyl-octadien-(2,6)-säure-(1) (1954)

Gamboni, G. ; Schinz, H. ; Eschenmoser, A.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 964-971

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Die säurekatalysierte Cyclisation der cis-Apogeraniumsäure liefert in einheitlicher Reaktion eine 1,1-Dimethyl-cyclohexanol-(3)-carbonsäure-(2) vom Smp. 118°. Helg & Schinz hatten andererseits aus der trans-Apogeraniumsäure ausschliesslich die andere der beiden möglichen steroisomeren 1,1-Dimethyl-cyclohexanol-(3)-carbonsäuren-(2) vom Smp. 161° erhalten. Damit ist der stereospezifische Verlauf dieser Reaktion aufgezeigt.

Additional Material: 6 Ill.

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URL: http://dx.doi.org/10.1002/hlca.19540370404

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64

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Dielektrische Messungen an polaren Gemischen. 2. Mitteilung. Elektrische Polarisation von Aminosäurelösungen (1954)

Gäumann, T. ; Günthard, Hs. H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 971-982

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The dielectric properties of solutions of ω-aminoacids in mixed solvents are compared with the properties calculated for a simple model. As a model representing the dissolved dipolar ion a system of concentric spheric shells was assumed. The inner sphere with a central microscopic dipole and the concentric shells are models for the dipolar ion and the solvate layers respectively. The influence of the dielectric constants of the dipolar ion, and of the solvate layers on the electric susceptibility of solutions of dipolar ions, sensitively depends on the value of the inner dielectric constant of the dipolar ion and - although much less - of the solvate layers. Assuming a selective solvation, the measured values can be interpreted qualitatively.

Additional Material: 4 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370405

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Über Steroide und Sexualhormone. 201. Mitteilung. 17aα-Methyl-D-homo-testosteron, ein hoch aktives männliches Sexualhormon (1954)

Heusser, H. ; Wahba, Nagi ; Winternitz, F.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1052-1059

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: 17aα-Methyl-D-homo-testosteron, ein biologisch hoch aktives Androgen, konnte auf partialsynthetischem Wege gewonnen werden. Die auf Grund chemischer Reaktionen abgeleitete Konfiguration des Kohlenstoffatoms 17a dieser Verbindung steht in Übereinstimmung mit ihrem biologischen Verhalten.

Additional Material: 1 Tab.

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URL: http://dx.doi.org/10.1002/hlca.19540370412

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66

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Über einige Derivate der 8-Aminochinaldinsäure. Metallionen und biologische Wirkung, 25. Mitteilung (1954)

Roth, R. ; Erlenmeyer, H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1064-1068

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Starting from 8-nitroquinaldine we synthezised 2-carboxy-8-aminoquinoline and some derivatives on two different ways.

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URL: http://dx.doi.org/10.1002/hlca.19540370414

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67

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Über den Mechanismus der para-Claisen-Umlagerung. Zur Kenntnis der Claisen-Umlagerung IV (1954)

Schmid, K. ; Haegele, W. ; Schmid, H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1080-1093

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Anhand von Experimenten mit radioaktiv markierten Stoffen liess sich zeigen, dass die thermische para-Claisen-Umlagerung von 2,6-Diallylphenyl-allyläther zu 2,4,6-Triallylphenol uber 2,2-Diallyl-6-allyl-cyclohexadienon-(l) als Zwischenprodukt verläuft. Dabei werden zwei cyclische Zwischenzustände durchschritten, die jedesmal eine Inversion der wandernden Allylgruppe bewirken.

Additional Material: 1 Ill.

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URL: http://dx.doi.org/10.1002/hlca.19540370416

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68

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Synthese von 1,1-Dimethyl-2-(β-carboxy-äthyl)-cyclohexanon-(3) (1954)

Stauffacher, D. ; Schinz, H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1223-1226

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Der δ-Ketoester 1,1-Dimethyl-2-(β-carbäthoxy-äthyl)-cyclohexanon-(3) wurde durch Kondensation von 1,1-Dimethyl-2-carbäthoxy-cyclohexanon-(3) mit Acrylsäureester und nachfolgende Decarboxylierung hergestellt; daraus wurde durch Verseifung die entsprechende Säure gewonnen.

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Synthese von 6-Äthyl-α- und 6-Äthyl-β-jonon (1954)

Surber, W. ; Schinz, H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1239-1251

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: 6-Äthyl-α- und 6-Äthyl-β-jonon wurden, ausgehend von 2-Äthyl-3-methyl-I-brom-buten-(2), über die Stufen 5-Äthyl-6-methyl-hepten-(5)-on-(2), 6-Äthyl-geraniumsäureester, 6-Äthyl-geraniol und η-Äthyl-pseudojonon hergestellt. Die Eigenschaften der 6-Äthyl-jonone sind denen der entsprechenden 6-Methyl-jonone (Irone) analog. Das 6-Äthyl-α-jonon wurde ins Dihydro- und Tetrahydroketon über-geführt.

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Über einige Derivate heterocyclischer Carbonsäuren III. Metallionen und biologische Wirkung, 26. Mitteilung (1954)

Häring, M. ; Prijs, B. ; Erlenmeyer, H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1339-1343

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: 2-Carboxy-5,6-benzoquinoline and some derivatives were synthesized.

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Errata (1954)

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1360-1360

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

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URL: http://dx.doi.org/10.1002/hlca.19540370445

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Darstellung eines Iso-[3-carbonsäureamid-N1-D-ribosido-pyridiniumbromids] und verwandter Verbindungen (1954)

Viscontini, M. ; Marti, M. ; Karrer, P.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1373-1378

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Aus der Tetracetylribose vom Smp. 85° wurde über die ent-sprechende Acetobromribose ein neues 3-Carbonsäureamid-N1-D-ribosido-pyridiniumbromid gewonnen, welches mit einem früher (Helv. 36, 1777 (1953)) dargestellten 3-Carbonsäureamid-1-D-ribosido-pyridiniumbromid isomer ist und daher als Iso-[3-carbonsäure-amid-Nl-D-ribosido-pyridiniumbromid] bezeichnet wird. In ähnlicher Weise wurde auch das entsprechende Chlorid erhalten. Aus den Ergebnissen der Titration mit Perjodsäure (Verbrauch 1,94 Mol Perjodat und Bildung von 0,9 Mol Ameisensäure) muss geschlossen werden, dass auch in der neuen Verbindung die Ribose pyranoside Struktur besitzt. Iso - [3 - carbonsäureamid-N1-D- ribosido-pyridiniumbromid] steht daher zum früher beschriebenen 3-Carbonsäure-Nl-D-ribosido-pyridiniumbromid wahrscheinlich im Verhältnis von α- zu β-glucosidischen Formen.

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Über Steroide und Sexualhormone. 202. Mitteilung. Über Umwandlungen in den Ringen B, C und D des Ergosterins (1954)

Zürcher, A. ; Heusser, H. ; Jeger, O. ; [et al.]

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1562-1579

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Es werden neue Umwandlungsprodukte des Ergosterins beschrieben, die an den Kohlenstoffatomen 5 und 6 Sauerstoffunktionen und an C - 9 und C - 14 des Gerüstes Doppelbindungen bzw. Sauerstoffunktionen aufweisen. Die Konstitution und Konfiguration dieser neuen Verbindungen wird diskutiert.

Additional Material: 3 Tab.

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Mehrdimensionale Papierchromatographie (1954)

Stöckli, A.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1581-1585

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Es wird ein neues mehrdimensionales Papierchromatographie-Verfahren beschrieben. Dabei wird vorerst eindimensional vorgetrennt, hierauf werden die noch ungenügend separierten Komponenten gruppenweise auf neue Blätter übertragen und mit spezifischen Lösungsmitteln weiter getrennt. Die Übertragung erfolgt durch Ausschneiden und Aufnähen der betreffenden Chromatogramm-Streifenstücke. Das Verfahren bietet grosse Vorteile: Unter anderem sehr guter Trenneffekt, auch bei komponentenreichen Gemischen; es erfordert nur kleine Gefässe; bei jedem Laufe können Testsubstanzen mitchromatographiert werden. An einem Beispiel wird die Trennung eines Gemisches von 22 Aminosäuren nach der neuen Technik dargelegt.

Additional Material: 2 Ill.

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URL: http://dx.doi.org/10.1002/hlca.19540370602

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75

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Untersuchungen über asymmetrische Synthesen VI. Der Reaktionsmechanismus und der sterische Verlauf der asymmetrischen Cyanhydrin-Synthese (1954)

Prelog, V. ; Wilhelm, M.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1634-1660

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Es wurde der sterische Verlauf der asymmetrischen Synthese von Benzal-milchsäure-nitril aus Zimtaldehyd und Cyanwasserstoff in Chloroform-Lösung in Gegenwart von China-Alkaloiden eingehender untersucht.

Additional Material: 6 Ill.

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76

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Untersuchungen in der Chinuclidin-Reihe. 3. Mitteilung. 3-Chinuclidin-carbonsäure (1954)

Grob, C. A. ; Renk, E.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1689-1698

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The synthesis of 3-quinuclidine carboxylic acid is described and its structure proven by conversion to 3-methyl-quinuclidine.

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Über Alkylenimin-Derivate. 10. Mitteilung. Synthese antifibrillatorisch wirksamer Substanzen (1954)

Spillmann, M. ; Hoffmann, K.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1699-1706

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Zur pharmakologischen Prüfung auf ihre antifibrillatorischen Eigenschaften wurde eine Reihe von neuen β-Phenyläthylamin-Derivaten hergestellt, wobei sich das N-[β-(3′,4′-Methylendioxyphenyl)-äthyl]-N-tetrahydro-furfuryl-methylamin als besonders interessant erwies.

Additional Material: 4 Tab.

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78

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Nachweis der intramolekularen Natur der Baker-Venkataraman-Umlagerung (1954)

Schmid, H. ; Banholzer, K.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1706-1716

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Mit Hilfe der Tracer-Methode wurde gezeigt, dass die basenkatalysierte Baker-Venkataraman-Umlagerung eines Gemisches aus 2-Benzoyloxy-4-methoxy-acetophenon und 2-Benzoyloxy-4-tetrahydro-pyranyloxy-acetophenon in die entsprechenden Äther des 2,4-Dioxy-ω-benzoyl-acetophenons zu Kreuzprodukten führt. Bei diesen Versuchen tritt aber zugleich eine teilweise Umesterung der Benzoate ein. Die Umlagerung eines Gemisches der entsprechenden Mesitylverbindungen gibt keine Kreuzprodukte. Die eigentliche Umlagerungsreaktion ist daher intramolekular.

Additional Material: 1 Tab.

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79

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Über die Spezifität der Aldolasen. IV. Mitteilung über den Stoffwechsel der Fructose in der Leber (1954)

Leuthardt, F. ; Wolf, H. P.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1734-1747

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: 1. Previous findings disproving the identity of liver aldolase (1-phosphofructaldolase) and cristalline muscle aldolase (1,6-diphosphofructaldolase) have been confirmed and extended. Highly purified muscle aldolase does not split fructose-1-phosphate even at concentrations of 0,5 mg enzyme/ml. (Optical method: oxydation of (DPN)H2 in the presence of phosphoglycerol dehydrogenase). High purity of the enzyme is essential to prove its specificity for fructose diphosphate.

Additional Material: 8 Ill.

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80

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Über Allo-cyclogeraniol (1954)

Grütter, H. ; Vogt, H. R. ; Schinz, H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1791-1797

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Aus dem Gemisch der beiden β,γ-ungesättigten Isomeren V und VI des Geraniols wurde bei Behandlung mit Ameisensäure bei l00° Allo-cyclogeraniol erhalten.

Additional Material: 4 Ill.

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81

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Produits à odeur de violette. 56e communication. Sur les acides α- et β-cyclocitrylidène-acétiques et quelques composés apparentés (1954)

de Tribolet, P. ; Schinz, H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1798-1804

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: L'oxydation à l'hypochlorite de l'α- et de la β-ionone, déjà décrite dans la bibliographie, est répétée et en partie améliorée. Cette opération est étendue à la pseudo-ionone, où elle est cependant plus difficile à effectuer. Les esters et les alcools correspondant aux acides C12H18O2, issus de ces oxydations, ainsi que leurs dérivés hydrogénés sont préparés.

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82

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Die Alkaloide eines Mutterkornpilzes von Pennisetum typhoideum Rich. und deren Bildung in saprophytischer Kultur. 36. Mitteilung über Mutterkornalkaloide (1954)

Stoll, A. ; Brack, A. ; Kobel, H. ; [et al.]

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1815-1825

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Aus den Sklerotien eines auf der afrikanischen Kolbenhirse Pennisetum typhoideum Rich. gefundenen Mutterkornpilzes konnte das Alkaloid Agroclavin isoliert und identifiziert werden. Aus den Sklerotien wurden Pilzstämme isoliert, welche die Fähigkeit besitzen, in saprophytischer Kultur in vitro Alkaloide zu bilden. Aus Kulturfiltraten und aus Mycelien konnten die beiden bereits bekannten Alkaloide Agroclavin und Elymoclavin, sowie ein neues Alkaloid mit der Bruttoformel C16H18O2N2, für das wir die Bezeichnung Penniclavin vorschlagen, isoliert und charakterisiert werden.

Additional Material: 2 Ill.

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Odeur et constitution XI. Etude de la transestérification-déshydratation de la lactone de l'acide tétraméthyl-1,1,6,10-hydroxy-6-décalyl-5-acétique (1954)

Stoll, M. ; Hinder, M.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1859-1866

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The transesterification-dehydration of lactone I (of 1, 1, 6, 10-tetramethyl-6-hydroxy-decalyl-5-acetic acid) yields besides small quantities of isolactone II the ester of the corresponding non saturated acid III. Prolonged heating in the presence of more concentrated sulfuric acid isomerizes this acid into acid IV. If the concentration of the latter reaches 45%, saponification of the reaction products yields no more the acids III m. p. 118° or IV m. p. 102° but an eutectic acid m. p. 84°. The corresponding infrared spectra are discussed.

Additional Material: 2 Ill.

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URL: http://dx.doi.org/10.1002/hlca.19540370632

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84

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N-Arylnitrone. II. Mitteilung (1954)

Utzinger, G. Ed. ; Regenass, F. A.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1892-1901

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Die N-Alkyl-N-aryl-hydroxylamine liessen sich zu den Nitronen aliphatischer Aldehyde dehydrieren, die auch durch direkte Kondensation von Aldehyd und Arylhydroxylamin gewonnen werden konnten.

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85

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Über das Alkaloid Serpentinin aus Rauwolfia serpentina Benth. Mitt. XII über Rauwolfiaalkaloide (1954)

Schlittler, E. ; Huber, H. U. ; Bader, F. E. ; [et al.]

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1912-1920

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Aus Rauwolfia serpentina Benth. wurde das Alkaloid Serpentinin isoliert und seine Konstitution untersucht. Die erhaltenen Abbauprodukte erlauben es noch nicht, eine Formel aufzustellen, ausserdem sind die Beziehungen zwischen den beiden Alkaloiden Serpentin und Serpentinin noch unklar.

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86

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Der Zustand von Diazoverbindungen bei verschiedenem pH. Azokupplungen in stark alkalischem Medium (1954)

Wittwer, C. ; Zollinger, Hch.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1954-1968

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Die Säurenatur des Diazoniumions wird diskutiert. Am Beispiel von p-Chlorphenyldiazoniumion und m-Sulfophenyldiazoniumion lässt sich zeigen, dass das Diazoniumion sich wie eine zweibasische Säure verhält, deren erste Dissoziationskonstante sehr viel kleiner ist als die zweite.

Additional Material: 3 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370707

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87

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Umwandlung von Calebassen- und Strychnos-Alkaloiden unter der Einwirkung verdünnter Säuren. 14. Mitteilung über Curare-Alkaloide aus Calebassen und verwandte Verbindungen (1954)

Asmis, H. ; Bächli, E. ; Schmid, H. ; [et al.]

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 1993-2001

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Das Strychnos-Alkaloid Caracurin V C20,H21ON2Cl wird durch Einwirkung von verdünnter Mineralsäure in Caracurin Va (C20H23O2N2Cl) verwandelt, und letzteres geht bei längerer Säureeinwirkung in Caracurin II (C20H23O2N2Cl) und Caracurin VII (C20H23O2N2Cl) über.

Additional Material: 6 Ill.

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URL: http://dx.doi.org/10.1002/hlca.19540370711

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88

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Über die Mitfällung von Radium mit Bariumsulfat (1954)

Jucker, H. ; Treadwell, W. D.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 2002-2010

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: 1. Radium wird sowohl bei oberflächenreicher wie oberflächenarmer Fällung von Bariumsulfat quantitativ mitgefällt. Es bilden sich homogene Mischkristalle.

Additional Material: 9 Ill.

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89

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Zur Kenntnis der Sesquiterpene und Azulene. 113. Mitteilung. Azulenaldehyde und Azulenketone: Die Struktur des Lactaroviolins (1954)

Heilbronner, E. ; Schmid, R. W.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 2018-2039

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Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Using theLCAO-MO theory in its usual approximation, it is shown that the spectroscopic, polarographic and chemical evidence concerning the azulenealdehyde lactaroviolin is only compatible with structure III. The correlation between the carbonyl stretching frequency ṽCO and the characteristic half-wave potential E1/2(1)0 of aromatic aldehydes is discussed.

Additional Material: 5 Ill.

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URL: http://dx.doi.org/10.1002/hlca.19540370715

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90

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Über Polygalakturonsäureamide (1954)

Solms, J. ; Denzler, A. ; Deuel, H.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 2153-2160

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Die Methylester von Galakturonsäure und von Polygalakturonsäuren mit verschiedenen Veresterungsgraden werden durch Behandlung mit flüssigem Ammoniak quantitativ in die entsprechenden Amide übergeführt. Bei der Bildung der polymeren Amide konnte kein Abbau der Fadenmolekeln nachgewiesen werden. Die Uronsäuren, ihre Methylester und Amide werden u. a. durch Mikroanalysen und Infrarotspektren charakterisiert. Die polymeren Amide sind durch Säure bedeutend schwerer hydrolysierbar als das monomere Amid. Die polymeren Amide zeichnen sich durch eine geringe Löslichkeit und durch Gelier- und Fadenbildungsvermögen aus. Die Eigenschaften der Amide werden stark durch ihre Fähigkeit zur Bildung inter- und intramolekularer Wasserstoffbrücken beeinflusst.

Additional Material: 1 Ill.

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URL: http://dx.doi.org/10.1002/hlca.19540370727

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91

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Zur Kenntnis der Zucker-osazone. 4. Mitteilung. Anhydro-Derivate der Tagatose- bzw. Sorbose-phenylosazone und -phenylosotriazole (1954)

Schreier, E. ; Stöhr, G. ; Hardegger, E.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 35-41

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Die Abspaltung von 1 Mol Wasser aus Phenyl-osazonen und Phenyl-osotriazolen der Sorbose- und der Tagatose-Reihe führt zu-3, 6-Anhydro-Derivaten, deren Konstitution aufgeklärt werden konnte.

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URL: http://dx.doi.org/10.1002/hlca.19540370105

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92

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Über die Verwendung von Cellulose als Adsorbens für Blutplasma-Proteine aus wässeriger Lösung (1954)

Brandenberger, Hans

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 97-103

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The use of cellulose as an adsorbent for the proteins of plasma in aqueous solution has been investigated.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370112

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Radiochemische Untersuchungen an Festkörperverbindungen I. Isotopenaustauschversuche im System Festkörper - Lösung (1954)

Buser, W.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 2334-2344

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: 1. In most crystals, only at higher temperature the ionic mobility attains sufficiently large value to permit the ions to migrate within the crystal. However, substances which show structurally conditioned defects, such as lattice regions with different degrees of order, have also at ordinary temperature a pronounced reactivity which is related to ionic migration in the interstitial lattice.

Additional Material: 1 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370747

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Erratum (1954)

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 2376-2376

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370753

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Die Glykoside von Strophanthus mirabilis Gilg. 2.Mitteilung. Glykoside und Aglykone, 123. Mitteilung (1954)

Primo, E. ; Tamm, Ch.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 141-147

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Aus den Samen von Strophanthus mirabilis Gilg. wurden nach fermentativem Abbau Periplocymarin, Cymarin, Cymarol, Emi-cymarin und in sehr geringer Menge ein nicht identifizierter krist. Stoff vom Smp. 171-174° (Subst. A) isoliert. Im Chloroform-Alkohol-(2:1)-Extrakt wurden durch Papierchromatographie mindestens vier weitere Stoffe nachgewiesen.

Additional Material: 5 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370117

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Über Alkylenimin-Derivate. 5. Mitteilung. Synthese einiger 3-Aryl-3-oxy-piperidine (1954)

Iselin, B. M. ; Hoffmann, K.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 178-184

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The synthesis of N-benzyl-3-piperidone and its conversion to N-benzyl-3-aryl-3-hydroxy-piperidines is described. On catalytic debenzylation the derivatives with a free hydroxyl group show a normal behaviour whereas the O-acylated derivatives loose the acyloxy group as a result of hydrogenolysis.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370121

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Über Alkylenimin-Derivate. 6. Mitteilung. Über die partielle Reduktion von cyclischen Imiden (1954)

Tagmann, E. ; Sury, E. ; Hoffmann, K.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 185-190

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: It is shown that LiAIH4 reduces cyclic imides, namely 3,3-disubstituted 2,5-dioxo-pyrrolidines and 2,6-dioxo-piperidines, primarily at the oxo-group not adjacent to the two substituents. Hydroxylactames are formed as the first reduction products. Similarly, the same oxygen atom is replaced by sulfur by reaction with P2S5. This behaviour is ascribed to steric hindrance.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370122

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98

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Sur quelques constituants de la podophylline et sur la structure de la podophyllotoxine, de l'α-peltatine et de la β-peltatine (1954)

Press, J. ; Brun, R.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 190-202

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Nous avons pu isoler à l'état cristallisé quatre constituants de l'extrait autolysé de rhizome de Podophyllum peltatum L.: la podophyllotoxine, la β-peltatine, l'α-peltatine et la picro-α-peltatine. Les formules globales que nous avons trouvées, à part la formule de la picro-α-peltatine, ne correspondent pas à celles indiquées par d'autres auteurs. Nous proposond des formules de constitution pour ces substances.

Additional Material: 7 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370123

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99

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Versuche zur Herstellung von Amid-Derivaten der α-Phenylacetamido-acrylsäure. 3. Mitteilung (1954)

Brenner, M. ; Rüfenacht, K.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 209-216

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Die Methoden zur Synthese von Peptiden, welche Diäthylphosphorig- und Diäthylarsenig-säure-amide als Aminüberträberträger benützen, wurden auf ihre Brauchbarkeit zur Herstellung von α-Acylaminosäureamiden, α-Acetamido-zimtsäureamiden und α-Phenylacetamido-acrylsäureamiden geprüft. Im ersten Fall ist das Ergebnis überraschend gut, im zweiten Fall wegen gelegentlicher Nebenreaktionen nur teilweise befriedigend und im dritten Fall praktisch negativ. α-Phenyl-acetamido-acrylsäure-benzylamid konnte nur in geringer Menge hergestellt werden.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370125

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100

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Neue Synthese des 3-Desoxy-4,6-benzyliden-α-methyl-D-glucopyranosids (1954)

Vis, E. ; Karrer, P.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 37 (1954), S. 378-381

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Es wird eine neue Darstellung des 3-Desoxy-4, 6-benzyliden-α-methyl-D-glucopyranosids (II) durch Reduktion von 2,3-Ditosyl-4,6-benzyliden-α-methyl-D-glucopyranosid (I) durch Lithiumaluminium hydrid beschrieben.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19540370147

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