You Y, Luo S. Catalytic Asymmetric Mannich Type Reaction with Tri-/Difluoro- or Trichloroacetaldimine Precursors.
Org Lett 2018;
20:7137-7140. [PMID:
30407021 DOI:
10.1021/acs.orglett.8b03083]
[Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A highly efficient catalytic asymmetric Mannich 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).
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