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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 1620-1635 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Enehydrazines, 36. Reaction of Enehydrazines with Acetylenecarboxylic Esters and 3-Butyn-2-oneThe enehydrazine-hydrazone tautomers 1 and 4 are added to dimethyl acetylenedicarboxylate and 8, to methyl propiolate to give the open-chain methyl 5-(2,2-dimethylhydrazino)pentadienoates 3, 5a, b and 9. The reaction of methyl propiolate and 3-butyn-2-one with 4 give a greater number of hetero- and isocyclic products. The structures of 5a, 6a as well as 10a have been determined by X-ray analysis.
    Notes: Die Enhydrazin-Hydrazon-Tautomeren 1 and 4 werden an Acetylendicarbonsäure-dimethylester, 8 wird an Propiolsäure-methylester zu den offenkettigen 5-(2,2-Dimethylhydrazino)pentadiensäure-methylestern 3, 5a, b und 9 addiert. Mit Propiolsäure-methylester und 3-Butin-2-on bildet 4 eine größere Zahl von hetero- und isocyclischen Produkten. Die Strukturen von 5a, 6a und 10a wurden durch Röntgenanalyse ermittelt.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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