Diastereoselectivity in the preparation of β-silylesters from αβ-unsaturated esters and amides attached to chiral auxiliaries
作者:Ian Fleming、Nicholas D. Kindon
DOI:10.1039/c39870001177
日期:——
phenyldimethylsilyl-cuprate reagent to cinnamate and crotonate esters and amides of various known chiral auxilaries is diastereoselective, making available β-silylesters of high enantiomeric excess; the sense of the diastereoselectivity is anomalously different from established precedent in the case of silyl-cuprate addition to the cinnamate ester (1, R = Ph, R*=d).