Reductive umpolung for asymmetric synthesis of chiral α-allenic alcohols
作者:Yui Kondo、Kazunori Nagao、Hirohisa Ohmiya
DOI:10.1039/d0cc02619k
日期:——
copper/NHC-catalyzed reaction between aromaticaldehydes and propargylic phosphates using a silylboronate, providing enantioenriched chiral α-allenic alcohols with complete regioselectivity and moderate to high enantioselectivity. The reaction pathway involves the catalytic formation of a nucleophilic α-alkoxylalkylcopper(I) species from aldehydes followed by its SN2′ type substitution reaction with propargylic