An organocascade approach to α,α-chlorofluoroalcohols
摘要:
Fluorinated, tetrasubstituted, carbon stereocenters are challenging to install enantioselectively. gem-Chlorofluoro compounds contain a fluorinated, tetrasubstituted stereocenter, and are an entr e into other such compounds. We report herein the first catalytic, enantioselective method to prepare gem-chlorofluoro compounds from unfunctionalized aldehydes. This one-Pot method precludes the isolation of volatile and/or reactive alpha-haloaldehyde intermediates. (C) 2015 Elsevier Ltd. All rights reserved.