Enantioselective total synthesis of (-)-curcuquinone via regioselective chromium-mediated benzannulation

J Org Chem. 2005 Apr 29;70(9):3745-8. doi: 10.1021/jo0500939.

Abstract

[reaction: see text] A short and efficient, high-yielding enantioselective total synthesis of the marine natural product (-)-curcuquinone 1 is reported involving a regioselective [3 + 2 + 1]-benzannulation reaction as the key step. Additionally, this strategy allows the isolation of curcuhydroquinone monomethyl ether 9 as an intermediate of the benzannulation reaction and its subsequent further protection toward diversified hydroquinones.

MeSH terms

  • Animals
  • Catalysis
  • Chromium / chemistry*
  • Cnidaria / chemistry
  • Hydroquinones / chemistry
  • Indicators and Reagents
  • Molecular Structure
  • Sesquiterpenes / chemical synthesis*
  • Stereoisomerism

Substances

  • Hydroquinones
  • Indicators and Reagents
  • Sesquiterpenes
  • curcuquinone
  • Chromium