C. Gosmini et al., DIASTEREOSELECTIVE EPOXIDATION OF Z-ALPHA,BETA-DIFLUOROALLYL AND E-ALPHA,BETA-DIFLUOROALLYL ALCOHOLS, Journal of fluorine chemistry, 63(1-2), 1993, pp. 157-164
Z and E alpha,beta-Difluoroallyl alcohols have been prepared from chlo
rotrifluoroethylene. Epoxidation with VO(acac)2 + t-butylhydroperoxide
(TBHP) results in good diastereoselectivity for the Z isomer (83%).