Asymmetric Lithiation−Substitution Sequences of Substituted Allylamines
作者:Dwight D. Kim、Suk Joong Lee、Peter Beak
DOI:10.1021/jo047752m
日期:2005.7.1
(−)-Sparteine-mediated asymmetric lithiation−substitutionsequences of 2- and 3-substituted N-(Boc)-N-(p-methoxyphenyl) allylic amines with electrophiles have been investigated. Asymmetric lithiation−substitutions of N-(Boc)-N-(p-methoxyphenyl) allylic amines 11, 12, 13, 14, and 15 provide highly enantioenriched enecarbamates in good yields. Further transformations to give aldehydes, acids, ketones