TsurutaHaruki, MoriSeiichi, MukaiToshio
Oct 5, 1974
Citations
0
Influential Citations
5
Citations
Journal
Chemistry Letters
Abstract
7-Methyl- (IV), 7-ethyl- (V) and 7-isopropyl-7-methoxycarbonylcycloheptatrienes (VI) could be easily synthesized by alkylation of cycloheptatriene-7-carboxylic acid (I), followed by methylation with diazomethane. Valence isomerization between cycloheptatriene (a-form) and norcaradiene (b-form) is observed and steric factors controlling the equilibrium are discussed.