Unusual rearrangements of dimethylvinylidene-benzobicyclo[n,1,0]alkenes
Abstract
Thermal rearrangements of dimethylvinylidenebenzobicyclo[n,1,0]alkenes (n= 3,4) appear to proceed via concerted processes involving hydrogen atom migration from a carbon atom α to the cyclopropane ring to one of the carbon atoms comprising the allene skeleton.