Synthetic Communications®

Rapid synthesis of polyfunctionalized pyrano [2, 3-c] pyrazoles via multicomponent condensation in room-temperature ionic liquids

JM Khurana, B Nand, S Kumar

Index: Khurana, Jitender M.; Nand, Bhaskara; Kumar, Sanjay Synthetic Communications, 2011 , vol. 41, # 3 p. 405 - 410

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Citation Number: 47

Abstract

A highly efficient synthesis of 4H-pyrano [2, 3-c] pyrazoles has been completed using four- component cyclocondensation of hydrazine monohydrate/phenyl hydrazine, ethyl acetoacetate, aldehydes, and malononitrile in the presence of L-proline and room- temperature ionic liquids.