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  • 1
    Electronic Resource
    Electronic Resource
    Zur Struktur der Produkte der Reaktion vonE/Z-1-Benzolsulfonyl-3-(1-pentenyl)-indol mit N-Phenylmaleinimid: Ein erster Beitrag zur Konfigurations- und Konformationsanalyse in der Vinylindol-Cycloadditionsreihe (1988)
    Springer
    Monatshefte für Chemie 119 (1988), S. 1289-1297 
    Details
    ISSN: 1434-4475
    Keywords: 3-Vinylindoles ; Cycloadducts ; 1H-NMR ; X-Ray analysis
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Notes: Abstract The products2,3 of the reaction ofE/Z-1-benzenesulfonyl-3-(1-pentenyl)-indole (1) and N-phenylmaleimide were analysed by1H-NMR spectroscopy. Exemplarily, the structure elucidation of theendo-cyclo-adduct2 b was achieved by using several NMR techniques (diff. NOE-, INDOR-measurements, decoupling experiments, spectra simulation). The1H-NMR-spectroscopically gained prediction of relative configuration and conformation of2 b was supported on X-ray analysis. The cyclohexene ring of the new cycloadducts adopts in the liquid phase and in the crystal a slightly twisted boat conformation.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00808309
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  • 2
    Electronic Resource
    Electronic Resource
    Nicethamid-Analoge, VII. Darstellung eines nicethamid-analogen Pyrrolo [3,4-b]- und Pyrrolo [3,4-c]pyridinons (1975)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 1003-1009 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Nicethamide-Analogues, VII. Synthesis of a Pyrrolo[3,4-b]- and Pyrrolo [3,4-c]pyridinone as Nicethamide AnaloguesThe synthesis of the potentially analeptically active cyclic nicethamide analogues, 6-ethyl-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-5-one(9a) and 2-ethyl-2,3-dihydro-1H-pyrrolo[3,4-c]pyridin-3-one (9b) as well as the corresponding open-ring compounds N-ethyl-2-methylnicotinamide (12a) and N-ethyl-4-methylnicotinamide (12b) is described.
    Notes: Die Synthese der potentiell analeptisch wirksamen cyclischen Nicethamid-Analoga 6-Äthyl-6,7-dihydro-5H-pyrrolo[3,4-b]pyridin-5-on (9a) und 2-Äthyl-2,3-dihydro-1H-pyrrolo[3,4-c]pyridin-3-on (9b) sowie der entsprechenden ringoffenen Verbindungen N-Äthyl-2-methylnicotinamid (12a) and N-Äthyl-4-methylnicotinamid (12b) wird beschrieben.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19751080404
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  • 3
    Electronic Resource
    Electronic Resource
    Nicethamid-Analoge, V Untersuchungen zur gehinderten internen Rotation bei N,N-Dimethylpyridinamiden (1975)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 108 (1975), S. 730-734 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Nicethamide Analogues, V. Investigations of Hindered Internal Rotation in N,N-DimethylpyridinamidesThe synthesis of homologue, vinylogue and ringalkylated N,N-dimethyl nicotinamides is described and the energy barrier of the hindered rotation of the amide group determined by means of 1H-n. m. r. spectroscopy.
    Notes: Die Synthese von homologen, vinylogen und Kernalkylierten N,N-Dimethylnicotinamiden wird beschrieben und die Energiebarriere bei der gehinderten Rotation der Amidgruppe mittels 1H-NMR-Spektroskopie bestimmt.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19751080303
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  • 4
    Electronic Resource
    Electronic Resource
    7,8-Dihydroimidazo[1,2-c]pyrimidin-5(6H)-one, -5(6H)-thione und -5(6H)-ylidencyanamide (1984)
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 2597-2614 
    Details
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: 7,8-Dihydroimidazo[1,2-c]pyrimidine-5(6H)-ones, -5(6H)-thiones, and -5(6H)-ylidenecyanamidesThe cyclisation of the 4,5-substituted 2-(2-aminoethyl)imidazoles 5 with dimethyl N-cyanodithioimidocarbonate (2), 1,1′-carbonyldiimidazole (10a), or 1,1′-thiocarbonyldiimidazole (10b) gives the hitherto unknown title compounds 7, 11, and 14. The 1H and 13C NMR data as well as the reactions with nucleophiles are described.
    Notes: Die Cyclisierung der 4,5-substituierten 2-(2-Aminoethyl)imidazole 5 mit Dimethyl-N-cyandithioimidocarbonat (2), 1,1′-Carbonyldiimidazol (10a) oder 1,1′-Thiocarbonyldiimidazol (10b) ergibt die bisher nicht beschriebenen Titel-Verbindungen 7, 11 und 14. Die 1H- und 13C-NMR-Daten sowie des Verhalten gegenüber Nucleophilen werden beschrieben.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/cber.19841170805
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