ZIB

1

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Studies on Lactams. II. Synthesis of Some New β-Lactams (1978)

Osman, A. M. ; Hassan, Kh. M. ; El-Maghraby, M. A. ; [et al.]

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 320 (1978), S. 482-490

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Untersuchungen an Lactamen. II. Synthese neuer β-Lactame

Additional Material: 6 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19783200315

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2

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Spectrophotometric Study of Some Arylidene Derivatives of Benzoic and Salicylic Acid Hydrazides in Buffer Solutions (1978)

Temerk, Y. M. ; Ghoneim, M. M. ; Maghrabi, J. Y.

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 320 (1978), S. 1029-1035

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Spektrophotometrische Untersuchungen einiger Arylidenderivate von Benzoe- und Salicylsäurehydraziden in Pufferlösungen

Additional Material: 2 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19783200620

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3

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Mass spectral studies on steroidal compounds. IV. Mass spectra of 6-oxa-B-homo-5α-cholestan-7-one and its derivatives (1975)

Ahmad, M. S. ; Mushfiq, M. ; Asif, M. ; [et al.]

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 317 (1975), S. 1049-1053

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Additional Material: 1 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19753170622

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4

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Monosodium glutamate induced lesions of the arcuate nucleus. I. Endocrine deficiency and ultrastructure of the median eminenceSupported by USDHS Program Project Grant NS-11462. (1976)

Holzwarth-Mcbride, M. A. ; Hurst, E. M. ; Knigge, K. M.

New York, NY [u.a.] : Wiley-Blackwell

The @Anatomical Record 186 (1976), S. 185-196

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ISSN: 0003-276X

Keywords: Life and Medical Sciences ; Cell & Developmental Biology

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Medicine

Notes: Monosodium glutamate was administered daily on days 5 through 10 postnatally at a dose of 2.5 mg/gm body weight. Counts of remaining perikarya in the arcuate nucleus of adult mice indicated approximately an 80% decrease in the number of perikarya. The arcuate lesion resulted in endocrine deficits; reproductive capacity was reduced, animals were smaller in stature and obese, and the weights of the anterior pituitary, ovaries and testes were significantly decreased while adrenals were unaffected. Light microscopic studies revealed no significant changes in thickness or general histological appearance of the median eminence. At the electron microscope level, there were no alterations in the number of nerve terminals or dense core vesicles per unit area in the contact zone. These observations suggest that afferents to the median eminence from the arcuate nucleus may form a relatively small portion of its total nerve terminal population.

Additional Material: 6 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/ar.1091860205

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5

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Further investigation on the structure of the arylhydrazones of α-cyanoketones: Electroreduction of 3-Phenyl-2,3-diketopropionitrile 2-Phenylhydrazone (1975)

Sammour, H. M. ; Fahmy, H. M. ; Elnagdi, M. H.

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 317 (1975), S. 257-264

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: The polarographic behaviour of the benzenediazonium coupling product with ω-cyanoacetophenone in aqueous ethanolic solutions of varying pH indicates that it exists in the hydrazone form (1). A mechanism for the reduction process is suggested.

Additional Material: 4 Ill.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19753170210

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6

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Arbeitsvorschriften und Meßergebnisse. Studies on Cyantine Dyes. V [16]. Synthesis of New Asymmetrical Oxa-Pyrazolomonomethine Cyanines (1978)

Osman, A. M. ; Youssef, M. S. K. ; Hassan, Kh. M.

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 320 (1978), S. 857-862

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Untersuchungen an Cyaninfarbstoffen. V. Synthese von neuen asymmetrischen Oxa-pyrazolomonomethincyaninen

Additional Material: 2 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19783200519

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7

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Analogues de la lincomycine. I. Allongement de la chaîne du di-O-isopropylidène-1,2:3,4-α-D-galacto-hexodialdopyrannose-1,5Une partie de ce travail a fait l'objet d'une communication à la “XVth Conference of Pharmaceutical Sciences” Le Caire, Décembre 1977. (1979)

Tronchet, Jean M. J. ; Massoud, Mohammed A. M.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 62 (1979), S. 1632-1639

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Lincomycin analogues. I. Chain-extensions of [1,2:3,4]-di-O-isopropylidene-α-D-galacto-hexodialdo-1,5-pyranoseThe title aldehydosugar 1 treated with Wittig reagents led in good to excellent yields to the unsaturated sugar derivatives 3-7 and 10-15, 8 having been prepared by condensation of 1 with malonic acid. The configuration (Z or E) of each compound obtained has been established by 1H-NMR. These chain-extensions constitute the first synthetic step towards the preparation of lincomycin analogues.

Additional Material: 2 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19790620530

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8

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Propellanes. L. Further support for control by secondary orbital overlap during Diels-Alder reactions of certain propellanesPart XLIX: see P. Ashkenazi, M. Peled, E. Vogel & D. Ginsburg, Tetrahedron, in press.,Dedicated to Prof. Dr. h.c. A.S. Dreiding on the occasion of his 60th birthday (1979)

Kaftory, M. ; Peled, M. ; Ginsburg, D.

New York, NY : Wiley-Blackwell

Helvetica Chimica Acta 62 (1979), S. 1326-1329

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ISSN: 0018-019X

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: In contrast to the behavior of 4-substituted-1,2, 4-triazoline-3, 5-diones which add to the syn-face of the cyclohexadiene with respect to the hetero-ring in propellanes of type 1, dienophiles containing a C, C double bond instead of an N, N double bond add exclusively to the anti-face of the same substrates. This supports our thesis that these reactions are controlled by secondary orbital interaction between the N, N dienophiles and the hetero-ring of the substrates, an interaction which cannot exist in the C, C dienophiles.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/hlca.19790620446

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9

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Steric Effects in the STOBBE Condensation of 3,4-Disubstituted Acetophenones with Dimethyl Methylsuccinate (1979)

El-Newaihy, M. F. ; Enayat, E. I. ; Salem, M. R. ; [et al.]

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 321 (1979), S. 65-70

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Sterische Effekte in der STOBBE-Kondensation von 3,4-disubstituierten Acetophenonen mit Dimethyl-methylsuccinatDie Kondensation von 3,4-Dimethyl-, 3,4-Dimethoxy- und 3,4-Dichloracetophenon mit Dimethylsuccinat in Gegenwart von Kalium-t-butylat lieferte in jedem Fall ölige Gemische der stereoisomeren Halbester 1 und 2. Während die (E)-Halbester 1 zu den entsprechenden 1-Acetoxy-3-nahpthoesäureestern 5 cyclisiert werden konnten, ergaben die (Z)-Halbester 2 unter den gleichen Bedingungen die entsprechenden 3-Oxo-inden-2-(α-subst.)-essigsäuren 7.Das Isomerenverhältnis wird mit sterischen Wechselwirkungen in den γ-Lacton-Zwischenprodukten 8 erklärt.

Additional Material: 4 Tab.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19793210108

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10

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Zur Reaktion von o-Halogenbenzylcyaniden mit Schwefelkohlenstoff und Phenylisothiocyanat (1979)

Rudorf, W.-D. ; Schierhorn, M. A. ; Augustin, M.

New York, NY : Wiley-Blackwell

Journal für Praktische Chemie/Chemiker-Zeitung 321 (1979), S. 1021-1028

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ISSN: 0021-8383

Keywords: Chemistry ; Organic Chemistry

Source: Wiley InterScience Backfile Collection 1832-2000

Topics: Chemistry and Pharmacology

Notes: Reaction of o-Halobenzyl Cyanides with Carbon Disulfide and Phenyl IsothiocyanateStarting from o-halobenzyl cyanides 1 and carbon disulfide in the presence of sodium hydride dithiolates 3 are prepared, which are not isolated. Alkylation under cooling gives ketene S, S-acetals 4, while on heating at 100°C benzo[b]thiophenes 6 are obtained. Nitrile cyclisation yields thieno[2, 3-b]benzothiophene 7. Reaction of 1 with phenyl isothiocyanate/sodium hydride and subsequent alkylation leads to the ketene S, N-acetals 13 und to the thiazolidines 15.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1002/prac.19793210618

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