Gold versus silver catalyzed intramolecular hydroarylation reactions of [(3-arylprop-2-ynyl)oxy]benzene derivatives

Org Biomol Chem. 2012 Dec 28;10(48):9700-8. doi: 10.1039/c2ob26763b. Epub 2012 Nov 13.

Abstract

The scope and the generality of gold versus silver catalyzed intramolecular hydroarylation reactions of 3-[(3-arylprop-2-ynyl)oxy]benzene derivatives in terms of rings substitution were investigated. Only products deriving from 6-endo cyclization were exclusively formed. The features of substituents had a considerable effect on the reaction outcome in the presence of silver catalysis, whereas gold catalysis revealed a unique blend of reactivity and selectivity and represented the only choice for the intramolecular hydroarylation reaction of the starting substrates bearing electron deficient arenes.

Publication types

  • Comparative Study
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzene Derivatives / chemistry*
  • Benzopyrans / chemical synthesis*
  • Benzopyrans / chemistry
  • Catalysis
  • Chemistry Techniques, Synthetic / methods*
  • Cyclization
  • Gold / chemistry*
  • Molecular Structure
  • Silver / chemistry*

Substances

  • Benzene Derivatives
  • Benzopyrans
  • Silver
  • Gold