p-Toluenesulphonic Acid-Promoted, I2-catalysed Sulphenylation of Pyrazolones With Aryl Sulphonyl Hydrazides

Chem Commun (Camb). 2014 Nov 7;50(86):13121-3. doi: 10.1039/c4cc05237d.

Abstract

Aryl pyrazolone thioethers were synthesized via the I2-catalysed cross-coupling of pyrazolones with aryl sulphonyl hydrazides in the presence of p-toluenesulphonic acid, which has been proposed to promote the reaction by facilitating the decomposition of sulphonyl hydrazides.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Benzenesulfonates / chemistry*
  • Catalysis
  • Hydrazines / chemistry*
  • Iodine / chemistry*
  • Pyrazolones / chemistry*
  • Sulfides / chemical synthesis
  • Sulfides / chemistry

Substances

  • Benzenesulfonates
  • Hydrazines
  • Pyrazolones
  • Sulfides
  • hydrazine
  • pyrazolone
  • Iodine
  • 4-toluenesulfonic acid