Enantioselective Pd-catalyzed dearomative reductive Heck and domino Heck-Suzuki reactions of 2-CF3-indoles

Chem Commun (Camb). 2022 May 24;58(42):6200-6203. doi: 10.1039/d2cc01435a.

Abstract

Highly enantioselective palladium-catalyzed dearomative reductive Heck reaction and domino Heck-Suzuki reaction of 2-CF3-indoles have been developed. Using Pd(OAc)2/(R)-Synphos as the catalyst and Et3SiH as a hydride source, a variety of indolines bearing a 2-trifluoromethyl quaternary stereocenter were obtained via a dearomative reductive Heck reaction. Alternatively, using Pd(dba)2/phosphoramidite as the catalyst and Ar4BNa as a coupling partner, structurally diverse indolines containing two vicinal carbon stereocenters were afforded through the domino dearomative Heck-Suzuki reaction.

MeSH terms

  • Carbon
  • Catalysis
  • Indoles*
  • Palladium*
  • Stereoisomerism

Substances

  • Indoles
  • Palladium
  • Carbon