Isomerization of beta - gamma -unsaturated alcohol or its ester

摘要

A cis-trans isomerization of a cis- beta - gamma -unsaturated alcohol or its ester having the formula wherein R1 represents hydrogen atom or a C1-C5 alkyl group; X represents hydrogen atom or and R2 represents a hydrocarbon moiety or a hydroxyhydrocarbon moiety; R3 represents hydrogen atom or a hydrocarbon moiety into a transform, in the presence of a mercaptan as a catalyst, is provided. It can be also attained in the presence of a mercaptan and/or a disulfide as a catalyst in an inert gas environment with an initiator. It can be also attained in the presence of a mercaptan under an irradiation, if desired with a small amount of an initiator.