Stereoselective syntheses of the three isomers of ethylene glycol bis(tropane-3-carboxylate)

J Org Chem. 2002 Jul 26;67(15):5433-6. doi: 10.1021/jo020170p.

Abstract

Three epimers of ethylene glycol bis(tropane-3-carboxylate) (3alpha,3alpha'-, 3alpha,3beta'-, 3beta,3beta'-) have been synthesized by starting from 3-tropinone. 3-Tropinone was converted into the corresponding enol triflate and then subjected to palladium-catalyzed alkoxycarbonylation to provide the key intermediate methyl trop-2-ene-3-carboxylate in good yield. Stereoselective routes were developed to afford the three stereoisomers of ethylene glycol bis(tropane-3-carboxylate).

Publication types

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

MeSH terms

  • Catalysis
  • Chemistry, Organic / methods*
  • Ethylene Glycols / chemical synthesis*
  • Ligands
  • Molecular Structure
  • Palladium / chemistry
  • Stereoisomerism
  • Tropanes / chemical synthesis*
  • Tropanes / chemistry*

Substances

  • Ethylene Glycols
  • Ligands
  • Tropanes
  • ethylene glycol bis(tropane-3-carboxylate)
  • Palladium