Preparation of 1-substituted 1-vinylcycloalkanes from 3,3-tetra- and 3,3-penta-methyleneallylboranes

Article abstract of DOI:10.1016/0022-328X(89)85424-5

The boranes I and II, obtained by hydroboration of 1,1-tetra- and 1,1-penta-methyleneallenes with 9-BBN, were used as key reactants in the synthesis of a series of unsaturated gem-substituted carbinols (VIIa-VIIg, Xa-Xc, and XII), as well as 1,1-divinylcy