Preparation of proline derived lithium amide bases and their use in enantioselective deprotonation of meso epoxides
作者:Shirley K. Hendrie、John Leonard
DOI:10.1016/s0040-4020(01)90297-2
日期:1987.1
proline derived chirallithiumamide bases is described. (S)-2-(Pyrrolidinomethyl) pyrrolidine, prepared by the new route, has been used to deprotonate cis and transtbutyldimethylsiloxy-3,4-epoxycyclopentane enantioselectively, thus generating chiral cis and transtbutyldimethylsiloxy-2-cyclopenten-4-ols. The products had higher enantiomeric purity than those produced when the base was prepared by a