Organic chemistry
Indium chloride (InCl3) catalysed domino protocol for the regioselective synthesis of highly functionalized pyranopyrazoles under mild conditions

Hemant Chavan; Datta Survase; Sakharam Dongare; Vasant Helavi; Shreeram Ganapure

Volume 5, Issue 1, pp. 1-120, Serial No. 14 , January 2017, , Pages 105-114

Abstract
  Regioselective synthesis of highly functionalized pyranopyrazoles was achieved in excellent yield from phenyl pyrazolone, substituted aromatic aldehyde with nitroketene-N,S-acetal in the presence of indium trichloride as a versatile catalyst under reflux condition in ethanol-water mixture. All reactions ...  Read More

Indium chloride (InCl3) catalysed domino protocol for the regioselective synthesis of highly functionalized pyranopyrazoles under mild conditions


Organic chemistry
An environmentally benign synthesis of aryl-hydrazones with aqueous extract of Acacia pods as a natural surfactant type catalyst

Hemant Vilas Chavan; Dnyaneshwar M. Sirsat; Yoginath B. Mule

Volume 4, Issue 4, pp. 359-490, Serial No. 13 , October 2016, , Pages 373-388

Abstract
  An environmentally benign and clean synthesis of aryl-hydrazones by reacting variety of carbonyl compounds with thiosemicarbazide, semicarbazide, aminoguanidine, and phenyl hydrazine has been achieved using aqueous extract of Acacia concinna pods as a natural surfactant type catalyst. We found that the ...  Read More

An environmentally benign synthesis of aryl-hydrazones with aqueous extract of Acacia pods as a natural surfactant type catalyst