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Novel one-pot Facile Synthesis of Thiopyranopyrazole Using [H mim]HSO4 Catalyst

Vishal Srivastava ; Laboratory of Green Synthesis, Department of Chemistry, University of Allahabad, Allahabad – 211002, India
Pravin K. Singh ; Food Analysis and Research Lab, Centre of Food Technology, University of Allahabad, Allahabad – 211002, India
Praveen P. Singh ; Department of Chemistry, United College of Engineering & Research, Naini, Allahabad - 211010, India

Puni tekst: engleski pdf 1.210 Kb

str. 91-95

preuzimanja: 923



An efficient and easy protocol has been developed for synthesis of thiopyranopyrazole by using [H mim]HSO4 as recyclable catalyst under solvent-free condition at room temperature. This environmen-tally benign method has advantages, such as high yield of products, simple work-up procedure, and avoidance of the organic solvents, which will contribute in serving as a green process greatly. The catalyst was easily recovered and reused without any considerable loss of activity.

Ključne riječi

environmentally benign, solvent-free, cyclocondensation, ionic liquid, pyrazole-thione

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