[4 + 2], [2 + 2], and Carbene addition reactions involving cyclohexa-3,5-diene-cis-1,2-diol derivatives

Abstract

The reactions of cis-1,2-isopropylidenedioxycyclohexa-3,5-diene (1) with two N-substituted maleimides, diphenylketene, dichlorocarbene and ethoxycarbonylcarbene are described. Selected reactions of the 3-triflucromsthyl-(2) and 3-fluoro-(3) analogues with these reagents are also reported.