Enantioselective bromocyclization of allylic amides catalyzed by BINAP derivatives

Org Lett. 2015 Mar 6;17(5):1244-7. doi: 10.1021/acs.orglett.5b00220. Epub 2015 Feb 20.

Abstract

A highly enantioselective bromocyclization of allylic amides with N-bromosuccinimide (NBS) was developed with DTBM-BINAP as a catalyst, affording chiral oxazolines with a tetrasubstituted carbon center in high yield with up to 99% ee. By utilizing the bromo substituent as a handle, the obtained compounds were converted to synthetically useful chiral building blocks.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Amides / chemical synthesis*
  • Amides / chemistry
  • Bromosuccinimide / chemistry*
  • Catalysis
  • Cyclization
  • Molecular Structure
  • Naphthalenes / chemistry*
  • Stereoisomerism

Substances

  • Amides
  • BINAP, 2-naphthol
  • Naphthalenes
  • Bromosuccinimide