Thermal electrorocyclic ring-opening of cyclobutenes: substituents with complementary conrotatory preferences induce high stereoselectivity
作者:Roy Hayes、Stephen Ingham、Suthiweth T. Saengchantara、Timothy W. Wallace
DOI:10.1016/0040-4039(91)80660-x
日期:1991.6
The thermal transformation of cis-disubstituted cyclobutenes into conjugated (Z,E)-dienes is stereoselective when the electronic and, to a lesser degree, steric effects of the substituents induce complementary conrotatory preferences at the reaction termini.