[3 + 2] cycloaddition on carbohydrate templates: stereoselective synthesis of pyrrolidines

Org Lett. 2011 Mar 4;13(5):1072-5. doi: 10.1021/ol103119u. Epub 2011 Jan 26.

Abstract

Pyrrolidine derivatives were prepared in high diastereoselectivities and good yields via a [3 + 2] cycloaddition of a tert-butyldimethylsilyl protected carbohydrate-based allene with a diverse range of imines. The subsequent removal of the carbohydrate auxiliary afforded a variety of pyrrolidines with excellent enantioselectivities (up to 99% ee). Selective reduction of the pyrrolidines further demonstrated the potential of this strategy.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Carbohydrates / chemistry*
  • Catalysis
  • Molecular Structure
  • Oxidation-Reduction
  • Pyrrolidines / chemical synthesis*
  • Pyrrolidines / chemistry
  • Silanes / chemistry
  • Stereoisomerism

Substances

  • Carbohydrates
  • Pyrrolidines
  • Silanes