Catalytic Asymmetric Mannich Type Reaction with Tri-/Difluoro- or Trichloroacetaldimine Precursors
作者:Yang’en You、Sanzhong Luo
DOI:10.1021/acs.orglett.8b03083
日期:2018.11.16
A highly efficient catalyticasymmetricMannich type reaction of CF3-, CF2H-, or CCl3-acetaldimine precursors by a chiral primary amine is presented. This protocol provides facile access to chiral CF3-, CF2H-, or trichloroethyl amines in excellent yields and high enantioselectivity (up to 99% yield, up to >99% ee).