gem-Difluorination of 2,2-diaryl-1,3-dithiolanes by Selectfluor and pyridinium polyhydrogen fluoride

Chem Commun (Camb). 2005 Feb 7:(5):654-6. doi: 10.1039/b414254c. Epub 2004 Dec 8.

Abstract

2,2-diaryl-1,3-dithiolanes, readily obtainable from diaryl ketones, were transformed into the corresponding gem-difluoro compounds using a novel reagent combination involving Selectfluor and pyridinium polyhydrogen fluoride (PPHF) under mild conditions in moderate to good yields.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Diazonium Compounds / chemistry*
  • Fluorine / chemistry*
  • Heterocyclic Compounds / chemical synthesis*
  • Heterocyclic Compounds / chemistry*
  • Molecular Structure
  • Pyridinium Compounds / chemistry*

Substances

  • Diazonium Compounds
  • Heterocyclic Compounds
  • Pyridinium Compounds
  • Fluorine
  • 1,3-dithiolane
  • selectfluor