Highly enantioselective addition of phenylethynylzinc to aldehydes catalyzed by chiral cyclopropane-based amino alcohols

Molecules. 2013 Dec 11;18(12):15422-33. doi: 10.3390/molecules181215422.

Abstract

The enantioselective addition of phenylethynylzinc to aldehydes catalyzed by a series of cyclopropane-based amino alcohol ligands 7 was investigated. The reactions afforded chiral propargylic alcohols in high yields (up to 96%) and with excellent enantioselectivities (up to 98% ee) under mild conditions. Furthermore, studies on the structural relationship show that the matching of the chiral center configuration is crucial to obtain the high enantioselectivity.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acetylene / analogs & derivatives*
  • Acetylene / chemistry
  • Aldehydes / chemistry*
  • Amino Alcohols / chemistry*
  • Catalysis
  • Combinatorial Chemistry Techniques
  • Crystallography, X-Ray
  • Cyclopropanes / chemistry*
  • Molecular Conformation
  • Zinc / chemistry*

Substances

  • Aldehydes
  • Amino Alcohols
  • Cyclopropanes
  • phenylacetylene
  • cyclopropane
  • Zinc
  • Acetylene