Further study on the regioselectivity of (dimethylvinylidene)-carbene upon the cycloaddition to the α,β-unsaturated double bond of an allylic alcohol and the normal olefinic group
Further study on the regioselective addition of vinylidenecarbene 1 to the α,β-unsaturated double bond of allylic alcohol and the normal olefinic group is described. This selectivity was found to be influenced by both of the allylic hydroxy group and the degree of alkyl substitution of the doublebonds.
Unusual rearrangements of dimethylvinylidene-benzobicyclo[n,1,0]alkenes
作者:I. H. Sadler、J. A. G. Stewart
DOI:10.1039/c29700001588
日期:——
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.