A versatile approach to oligostilbenoid natural products--synthesis of permethylated analogues of viniferifuran, malibatol A, and shoreaphenol

Org Biomol Chem. 2009 Jul 7;7(13):2788-95. doi: 10.1039/b901911a. Epub 2009 May 21.

Abstract

A highly practical route to oligostilbenoid natural products is described. A regioselective Bi(OTf)3-catalyzed cyclodehydration provided ready access to 3-arylbenzofuran. Pd-catalyzed direct C-H activation of benzofuran and subsequent cross-coupling with aryl halide was successfully implemented for the introduction of aryl group at the C2 position of benzofuran. Further manipulation of the 2,3-diarylbenzofuran led to the efficient total synthesis of permethylated analogues of viniferifuran, malibatol A, and shoreaphenol.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzofurans / chemical synthesis*
  • Benzofurans / chemistry
  • Biological Factors / chemical synthesis*
  • Biological Factors / chemistry
  • Crystallography, X-Ray
  • Cyclization
  • Models, Molecular
  • Molecular Structure
  • Stereoisomerism
  • Stilbenes / chemical synthesis*
  • Stilbenes / chemistry*

Substances

  • Benzofurans
  • Biological Factors
  • Stilbenes
  • malibatol A