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- W2003759811 abstract "Acetonyl-1,3,5-cycloheptatrien (1) last sich durch Hydrid-Abstraktion mit Triphenylmethyliumperchlorat in das Acetonyltropyliumperchlorat (4) uberfuhren, aus dem durch Deprotonierung mit Triethylamin das 8-Acetylheptafulven (5) erhalten wird. Dieses reagiert mit Acetylendicarbonsaure-dimethylester in einer [8 + 2]-Cycloaddition und nachfolgender Dehydrierung zum 3-Acetyl-1,2-azulendicarbonsaure-dimethylester (6).Cyclic conjugate 5 and 7 Membered Ring Systems, IV. Note on the Synthesis of 8-AcetylheptadulveneHydride abstraction of acetonyl-1,3,5-cycloheptatriene (1) with triphenylmethylium perchlorate affords acetonyltropylium perchlorate (4) which on deprotonation with triethylamine gives 8-acetylheptafulvene (5). On reaction with dimethyl acetylenedicarboxylate 5 undergoes an [8 + 2]-cycloaddition; subsequent dehydrogenation gives dimethyl 3-acetyl-1,2-azulenedicarboxylate (6)." @default.
- W2003759811 created "2016-06-24" @default.
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- W2003759811 date "1978-05-11" @default.
- W2003759811 modified "2023-09-22" @default.
- W2003759811 title "Cyclisch konjugierte 5- und 7-Ringsysteme, IV.Notiz über die Synthese des 8-Acetylheptafulvens" @default.
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- W2003759811 doi "https://doi.org/10.1002/jlac.197819780217" @default.
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