Development of β,β-Dibrominated Secondary Enamides and Their Application to the Synthesis of 5-Br Oxazoles

J Org Chem. 2022 Nov 18;87(22):15670-15678. doi: 10.1021/acs.joc.2c01927. Epub 2022 Oct 31.

Abstract

Herein, we report a base promoted dibromination of enamides using CBr4 as a bromine source to provide expedient access to β,β-dibrominated secondary enamides. Preliminary synthetic application study shows that these novel products can be readily transformed to 5-Br oxazoles via Cu(I) catalyzed intramolecular cyclization in good yields.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amides*
  • Bromine
  • Catalysis
  • Cyclization
  • Oxazoles*

Substances

  • Oxazoles
  • Amides
  • Bromine