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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 117 (1984), S. 2045-2062 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cyclic Cross-Conjugated Bond Systems, 44. Higher Vinylogous Heptafulvalenes, Syntheses - ThermolysesThe (Z)/(E)-heptafulvatrienes 3/4, the heptafulvadienine 5, and the heptafulvadienediine 6 are synthesized. In 5/6 selective cis-hydrogenation of the triple bond(s) (to yield 3, 39) is not achieved. Upon thermolysis of 3 in ca. 10-1 M solutions above 70°C isomerisation to 4 takes place, 18π-electrocyclisation occurs, if at all, only to a minor extent.
    Notes: Die (Z)/(E)-Heptafulvatriene 3/4, das Heptafulvadienin 5 und das Heptafulvadiendiin 6 werden synthetisiert. In 5/6 ist eine selektive cis-Hydrierung der Dreifachbindung(en) (zu 3, 39) nicht möglich. Bei der Thermolyse von 3 in ca. 10-1 M Lösungen findet oberhalb 70°C Isomerisierung zu 4, 18 π-Elektrocyclisierung, wenn überhaupt, nur sehr untergeordnet statt.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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