Lewis Acid Catalyzed Friedel-Crafts Alkylation of Alkenes with Trifluoropyruvates

J Org Chem. 2016 May 6;81(9):3929-35. doi: 10.1021/acs.joc.6b00358. Epub 2016 Apr 7.

Abstract

A Friedel-Crafts alkylation reaction of styrenes with trifluoropyruvates has been developed, which delivered allylic alcohols in excellent yields (up to 98%) using the Ni(ClO4)2·6H2O/bipyridine complex as a catalyst. The asymmetric reaction was catalyzed by the chiral Cu(OTf)2/bisoxazoline complex to afford the corresponding chiral allylic alcohols bearing trifluoromethylated quaternary stereogenic centers in moderate enantioselectivities (up to 75% ee).

Publication types

  • Research Support, Non-U.S. Gov't