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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 101 (1968), S. 3445-3453 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: N-Chlor-N-natrium-p-toluolsulfonamid (1) und N-Chlor-N natrium-benzolsulfonamid (2) reagieren mit Diaryldiazomethanen zu N-Methylen-sulfonamiden des Typs A. Diarylketonhydrazone werden bei Anwendung von zwei Molen 1 oder 2 zunächst zur Diazoverbindung dehydriert und liefern dann ebenfalls Verbindungen des Typs A. Die gleichen Reaktionsprodukte erhält man durch Einwirkung der Diazoverbindung auf N.N-Dichlor-sulfonamide (12, 13) und nachfolgende Chlorabspaltung aus den nicht isolierten Zwischenprodukten. Die Konstitution dieser Zwischenprodukte und das reaktive Verhalten der Chloramine 1 und 2 werden diskutiert.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Die Darstellung der N-Fluorenyliden-sulfonamide 5-7 aus Diazofluoren und N-Chlor-N-natriumarylsulfonamide 2-4 in Lösung durch Molekularsieb 3 Å wird beschrieben. Die IR- und Massenspektren von 5-7 werden diskutiert.  - Durch Einwirkung der N.N-Dichlor-arylsulfonamide 8-10 auf Phosphine bzw. Arsine und nachfolgende Chlorabspaltung durch Kupferpulver entstehen die N-Arylsulfonyl-phosphinimine bzw. -arsinimine 13-17.  - Die Umsetzung von N-Chlor-N-natrium-p-toluolsulfonamid (3) mit dimethylsulfoxid liefert N-p-Toluolsulfonyl-dimethylsulfoximin (18).
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1,2,3-Tricarbonyl Compounds, VIII. The Use of Fluorenylidenetriphenylphosphoranes in Wittig Olefin Synthesis. Experiments with 1, 2,3-Indanetrione, 1,2,3-Trioxo-2,3-dihydrophenalene, Glyoxal, and TerephthalaldehydeThe fluorenylidenetriphenylphosphoranes 1 and 2 react with the cyclic 1,2,3-tricarbonyl compounds 5 and 6 to yield the corresponding ethylenes 9-12 and triphenylphosphine oxide. Treatment of 1 and 2 with glyoxal or terephthalaldehyde affords the dienes 20-23.25 was obtained by reaction of 9-phenanthrenecarbaldehyde with 1. - Statements found in the literature concerning the reactivity of 1 are discussed.
    Notes: Die Fluorenylidentriphenylphosphorane 1 und 2 reagieren mit den hydratbildenden cyclischen 1,2,3-Tricarbonylverbindungen 5 und 6 bei Raumtemperatur unter Bildung der entsprechenden Äthylene 9-12 neben Triphenylphosphinoxid. Mit Glyoxal bzw. Terephthalaldehyd bilden sie die Diene 20-23. Das Umsetzungsprodukt aus 1 und 9-Phenanthrencarbaldehyd (vgl. 25) wird beschrieben. - Die Literaturangaben zur Reaktivität von 1 werden diskutiert.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 3954-3958 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: 1,2,3-Tricarbonyl Compounds, XII. Elucidation of the Constitution of the Reaction Products of Ninhydrin with 2-Aminophenol and 2-AminothiophenolNinhydrin (1) reacts with 2-aminophenol (2) and 2-aminothiophenol (6) to give products the constitutions of which were elucidated by means of the 1H- and 13C NMR spectra to be 10a-hydroxy-indeno[2,1-b]benz[1,4]oxazine-11(10aH)-one (3) and 10a-hydroxy-indeno[2,1-b]benz-[1,4]thiazine-11(10aH)-one (7), respectively. Structures mentioned in the literature are on the one hand corrected and on the other hand doubtless established.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 3762-3765 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: C=C Double Bonds with Extreme Reactivity, III. Reactions of 9-(9-Fluorenylidene)xantheneAccording to equations (1) to (4), 9-(9-fluorenylidene)xanthene (2) reacts with sulfur, malonodinitrile, aniline, or thiophenol to give the compounds 3, 5, 7-11, and diphenyl disulfide.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 116 (1983), S. 2068-2073 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Extremely Reactive C=C-Double Bounds, II. 1,3-Diphenyl-2-imidazolidineselenone from 1,1′,3,3′-Tetraphenyl-Δ2′2-biimidazolidine1,1′,3,3′-Tetraphenyl-Δ2,2′-biimidazolidine (1) reacts with metallic selenium to form 1,3-diphenyl-2-imidazolidineselenone (6). The actions of powdered copper, ethyliodide, thiophenole, phenylmagnesiumbromide, phenylisocyanate, and lithium alanate on 6 are described. Some of the unusual mechanisms of these reactions are discussed.
    Notes: 1,1′,3,3′-Tetraphenyl-Δ2,2′-biimidazolidin (1) reagiert mit metallischem Selen unter Bildung von 1,3-Diphenyl-2-imidazolidinselenon (6). Die Einwirkung von Kupferpulver, Ethyliodid, Thiophenol, Phenylmagnesiumbromid, Phenylisocyanat und Lithiumalanat auf 6 wird beschrieben. Die teils ungewöhnlichen Abläufe dieser Reaktion werden diskutiert.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 105 (1972), S. 2246-2257 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Diphenyldiazomethane and 9-Diazofluorene with Cyclic 1.2.3-Tricarbonyl Compounds, their Hydrates and their SemiacetalsThe interaction of diphenyldiazomethane (13) and of 9-diazofluorene (14) with the cyclic 1.2.3-tricarbonyl compounds 5-8 in 1.2-dimethoxyethane solution furnishes epoxides of type A or 1.3-dioxoles of type B. A and B are valence isomers. 1.2.3-Indantrione (5) and alloxan (6) react with 13 in the presence of methanol (formation of semiacetals) to yield benzophenone dimethylacetal together with hydrindantin (21) and alloxanthine (22), respectively. 13 reacts with the hydrates 1 and 2 to yield benzophenone together with hydrindantin (21) and alloxanthine (22), respectively, whereas 9-diazofluorene reacts analogously to produce fluorenone in addition to 21 and 22, respectively.
    Notes: Die Einwirkung von Diphenyldiazomethan (13) und 9-Diazo-fluoren (14) auf die cyclischen 1.2.3-Tricarbonylverbindungen 5-8 in 1.2-Dimethyoxy-äthan führt zur Bildung von Äthylen-oxiden des Typs A oder von 1.3-Dioxolen des Typs B. A und B sind Valenzisomere. Indantrion-(1.23) (5) und Alloxan (6) liefern mit 13 bei Gegenwart von Methanol (Methyl-halbacetal-Bildung) Benzophenondimethylacetal (31) sowie Hydrindantin (21) bzw. Alloxanthin (22). 13 reagiert mit den Hydraten 1 und 2 unter Bildung von Benzophenon und Hydrindantin (21) bzw. Alloxanthin (22), 9-Diazo-fluoren reagiert analog (Fluorenon-Bildung neben 21 bzw. 22).
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 112 (1979), S. 1763-1768 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions involving Hydrogen Transfer, III. Hydrogen-Transfer Between o,o′-Bridged Tetraarylethylenes and DiarylmethanesThermal hydrogen transfer between o,o′-bridged diarylmethanes and o,o′-bridged tetraarylethylenes leads to reduction of the ethylenes and to dimerization and dehydrogenation of the diarylmethanes (equ. (1)-(5)). The ethylene 1 reacts with 9,10-dihydroanthracene (15) to form 3 and anthracene (16)[equ. (6)]. The principles of these reaction are discussed.
    Notes: Bei der thermischen Wasserstoffübertragung zwischen o,o′-überbrückten Diarylmethanen und o,o′-überbrückten Tetraarylethylenen werden die eingesetzten Ethylene hydriert und die Diarylmethane dehydrierend dimerisiert (Gleichungen (1)-(5)). Das Ethylen 1 und 9, 10-Dihydroanthracen (15) liefern nach (6) 3 und Anthracen (16) Die Grundlagen dieser Reaktion werden diskutiert.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 1,2,3-Tricarbonyl Compounds, XIII Reaction of Ninhydrin and of 1,2,3-Indantrione with Compounds with two Functional Groups. A Contribution to the Formation of Spiro Compounds from NinhydrinNinhydrin (1) reacts with compounds 2-6 according to scheme (1) to give the 1,4-diazaspiro-[4.4]nonanes 7-11. The reaction of piperazine with 1 furnishes the hemiacetal 14. The spiro compounds 16 and 17 were obtained by the reaction of 1 with 2-bromoethanol and 3-bromopropanol, respectively. The non-catalysed reaction of 1,2-ethanedithiol with 1 or dehydrated ninhydrin (1,2,3-indantrione; 15) yields the hemimercaptal 18, whereas with 15 in the presence of boron trifluoride as catalyst the mercaptal 19 is obtained. The formation of spiro compounds from 1 is discussed.
    Notes: Ninhydrin (1) reagiert mit den N, N′-disubstituierten Ethylendiaminen 2-6 nach Schema (1) unter Bildung der 1,4-Diazaspiro[4.4]nonane 7-11. Die Umsetzung mit Piperazin führt zum Bis-halbaminal 14. Spiro[1,3-dioxolan-2,2′-indan]-1′,3′-dion (16) und Spiro[1,3-dioxan-2,2′-indan]-1′,3′-dion (17) entstehen bei der Reaktion von 1 mit 2-Bromethanol bzw, 3-Brompropanol. Die unkatalysierte Einwirkung von 1,2-Ethandithiol auf 1 oder dehydratisiertem Ninhydrin (1,2,3-Indantrion; 15) liefert das Bis-halbmercaptal 18, während mit 15 unter Bortrifluorid-Katalyse das Bis-ethylemercaptal 19 gebildet wird. Die Bildung von Spiroverbindungen aus Ninhydrin (1) wird diskutiert.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 113 (1980), S. 3605-3609 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Reaction of 1,1′,3,3′-Tetraphenyl-2,2′-biimidazolidinylidene with Carbon Disulfide1,1′,3,3′-Tetraphenyl-2,2′-biimidazolidinylidene (1) reacts with carbon disulfide to give a red compound, the constitution of which was demonstrated by X-ray analysis to be that of the betaine 2.
    Notes: 1,1′,3,3′-Tetraphenyl-2,2′-biimidazolidinyliden (1) reagiert mit Schwefelkohlenstoff unter Bildung einer roten Verbindung, deren Konstitution durch Röntgenstrukturanalyse im Sinne des Betains 2 aufgeklärt wurde.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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