Reaction of 2, 3, 4-pentantrione-3-arylhydrazones with N, N-dimethylhydrazine: Formation of substituted 1 H-pyrazoles via demethylation

…, KA Vyas, SP Pandey, PS Fernandes

Index: Patel; Vyas; Pandey; Fernandes Synthetic Communications, 1992 , vol. 22, # 21 p. 3081 - 3087

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Citation Number: 2

Abstract

Himatkumar V. Patel,* Kavita A. Vyas, Sudhanshu P. Pandey, and Peter S. Fernandes ... NSR Laboratory, Department of Chemistry, St. Xavier's College, Bombay 400001, India ... Abstract: A novel one-step synthesis of 4-arylazo-lH-l,3,5- trimethylpyrazoles is accomplished by reaction of N, N- dimethylhydrazine with 2,3,4-pentantrione-3-arylhydrazones via an unusual demethylation. ... There has been a growing interest in the chemistry of pyrazoles