Ring-closing metathesis in an enantioselective synthesis of the macrocyclic core of crassin acetate
作者:Gunnar Herstad、Peter P. Molesworth、Charlotte M. Miller、Tore Benneche、Marcus A. Tius
DOI:10.1016/j.tet.2016.02.050
日期:2016.4
The formation of the macrocyclic core of crassin acetate from an acyclic precursor could be effected by ring-closing alkyne metathesis reactions while ring-closing olefin metathesis reactions failed. Installment of necessary stereochemistry was achieved by Sharpless asymmetric epoxidations on allylicalcohols obtained from geranyl acetate or farnesyl acetate. The macrocyclic core of crassin acetate