Die säurekatalysierte Isomerisierung von 7-Oxabicyclo[2.2.1]-heptadien- und Oxepin-Derivaten [1]
作者:P. Vogel、B. Willhalm、H. Prinzbach
DOI:10.1002/hlca.19690520305
日期:——
The acid catalyzed isomerization of several substituted oxanorbornadienes 4 and oxepines 10 - easily available from 4 by a photochemical and a consecutive thermal step - allows the synthesis of several highly substituted phenols and 2,4-cyclohexadienones in a straightforward manner and with good to excellent yields. The formation of the methoxycarbonyl-hexadienes 18e and 18f upon photolysis of 9e and