Asymmetric synthesis of cis-5-tert-butylproline with metal carbenoid NH insertion

J Org Chem. 2003 Jun 27;68(13):5147-52. doi: 10.1021/jo030081s.

Abstract

The highly stereoselective intramolecular metal carbenoid insertion reaction of sulfinimine-derived delta-amino alpha-diazoesters is used to prepare cis-5-tert-butylproline. A concerted or nearly concerted metal carbenoid N-H insertion reaction mechanism is proposed.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Amines / chemistry
  • Catalysis
  • Chemistry, Organic / methods
  • Esters / chemistry
  • Ketones / chemistry
  • Magnetic Resonance Spectroscopy
  • Models, Molecular
  • Molecular Structure
  • Organometallic Compounds / chemistry*
  • Proline / analogs & derivatives*
  • Proline / chemistry*
  • Rhodium / chemistry*
  • Stereoisomerism

Substances

  • Amines
  • Esters
  • Ketones
  • Organometallic Compounds
  • Proline
  • Rhodium