1,3-Asymmetric induction in the aldol addition reactions of methyl ketone enolates and enolsilanes to β-substituted aldehydes. A model for chirality transfer
作者:David A. Evans、Joseph L. Duffy、Michael J. Dart
DOI:10.1016/s0040-4039(00)78430-9
日期:1994.11
The direction and degree of 1,3-asymmetric induction have been evaluated in the addition of metal enolates and enolsilanes to aldehydes substituted at the β position with both polar (OR, OAc, Cl) and nonpolar (Me) substituents. A model for 1,3-asymmetric induction for polar addition processes such as the Mukaiyama aldol reaction is proposed to account for the documented trends in reaction diastereoselection