Reaction-based fluorescent sensing of Au(I)/Au(III) species: mechanistic implications on vinylgold intermediates

Org Lett. 2010 Feb 5;12(3):401-3. doi: 10.1021/ol902395x.

Abstract

A rhodamine-derived alkyne shows turn-on fluorescence change only toward Au(I)/Au(III) species among various other metal species examined. A formyloxazole compound is formed as the major product in aqueous media, presumably via a vinylgold intermediate, which casts new mechanistic implications on vinylgold intermediates.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Alkynes / chemistry
  • Catalysis
  • Fluorescence
  • Fluorescent Dyes / chemical synthesis*
  • Fluorescent Dyes / chemistry
  • Gold / analysis*
  • Gold / chemistry
  • Molecular Structure
  • Organogold Compounds / chemistry*
  • Rhodamines / chemical synthesis*
  • Rhodamines / chemistry

Substances

  • Alkynes
  • Fluorescent Dyes
  • Organogold Compounds
  • Rhodamines
  • Gold