Highly stereodivergent generation of the Z- and E-enolates of a β-amino ester via conjugate addition to methyl crotonate by using lithium N-benzyltrimethylsilylamide as a nitrogen nucleophile, and application to stereoselective aldol reactions
作者:Tadao Uyehara、Naoki Asao、Yoshinori Yamamoto
DOI:10.1039/c39890000753
日期:——
Methods for highlystereoselectivegeneration of both Z- and E-enolates of a β-aminoester have been developed on the basis of a conjugateaddition of lithiumN-benzyltrimethylsilylamide to methylcrotonate and applied to stereoselective synthesis of anti,syn- and syn,anti-β-amino-β′-hydroxy esters by treatment with aldehyde.