Stereoselective synthesis of (S)-13-hydroxy octadeca-(9Z, 11E)-di- and (9Z, 11E, 15Z)-trienoic acids : selfdefensive substances against rice blast disease
作者:J.S. Yadav、P.K. Deshpande、GVM Sharma
DOI:10.1016/s0040-4020(01)80454-3
日期:1992.1
A highly stereoselective synthesis of [(S)-coriolic acid] (1) and first total synthesis of (S)-15,16-didehydrocoriolic acid (2) by a Pd-degrees-CuI catalysed coupling of (S)-halovinylalcohol with acetylenic moiety is described. The required optically pure chlorovinylalcohols or bromovinylalcohols have been prepared from epoxy chlorides, obtained by Sharpless asymmetric epoxidation of allylic alcohols.