Palladium(0)-catalyzed synthesis of chiral ene-allenes using alkenyl trifluoroborates

J Org Chem. 2006 Feb 17;71(4):1563-8. doi: 10.1021/jo052201x.

Abstract

Enantioenriched allenes serve as chiral transfer reagents, making them attractive synthetic targets. Herein, the synthesis of enantioenriched allenes utilizing a Pd(0)-catalyzed cross-coupling reaction of propargylic carbonates and phosphates with alkenyl trifluoroborates is reported. Di-, tri-, and tetrasubstituted allenes were synthesized in moderate to high optical yields. Several racemic allenes possessing various functional groups were also synthesized.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkadienes / chemical synthesis*
  • Alkadienes / chemistry
  • Borates / chemistry*
  • Catalysis
  • Fluorine
  • Palladium*
  • Stereoisomerism

Substances

  • Alkadienes
  • Borates
  • Fluorine
  • propadiene
  • Palladium