Pharmazie

Synthesis and reactions of some ethyl 3-aroyl-4-aryl-2-pyrazoline-5-carboxylates

HM Faidallah, MSI Makki, AHI ElMassry, SY Hassan

Index: Faidallah; Makki; Elmassry; Hassan Pharmazie, 1997 , vol. 52, # 2 p. 101 - 105

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Citation Number: 5

Abstract

Résumé/Abstract A series of ethyl 3-aroyl-4-aryl-2-pyrazoline-5-carboxylates 1 was prepared. Their reactions with bromine water, potassium permanganate and potassium hydroxide afforded the corresponding pyrazoles. With aryl and aroyl hydrazines the pyrazolines 1 gave the Schiff bases 9 while with hydrazine hydrate they yielded the corresponding acid hydrazides 11. Condensation of 11 with aromatic aldehydes gave the ...