Chemoenzymatic synthesis of both enantiomers of 3-hydroxy-2,2-dimethylcyclohexanone

J Org Chem. 2008 Dec 5;73(23):9501-3. doi: 10.1021/jo801954v.

Abstract

The stereoselective acetylation of meso-2,2-dimethyl-1,3-cyclohexanediol by vinyl acetate in the presence of three lipases gave the (1R,3S)-monoester in high enantiomeric excess (ee > or = 98%). The hydrolysis of the corresponding meso-diacetate in the presence of Candida antarctica lipase in phosphate buffer provided the opposite enantiomer. Optically active monoacetates were converted to both enantiomers of 3-hydroxy-2,2-dimethylcyclohexanone, a versatile chiral building block.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Aspergillus niger / enzymology
  • Buffers
  • Burkholderia cepacia / enzymology
  • Candida / enzymology
  • Chemistry, Organic / methods*
  • Cyclohexanones / chemistry*
  • Esters
  • Hydrolysis
  • Lipase / chemistry*
  • Models, Chemical
  • Oxygen / chemistry
  • Phosphates / chemistry
  • Stereoisomerism
  • Swine

Substances

  • Buffers
  • Cyclohexanones
  • Esters
  • Phosphates
  • Lipase
  • Oxygen