4-Alkyl-3: 5-dioxo-1: 2-diphenylpyrazolidine derivatives

R Budziarek, DJ Drain, FJ Macrae, J McLean…

Index: Budziarek et al. Journal of the Chemical Society, 1955 , p. 3158,3162, 3163

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Citation Number: 3

Abstract

Condensations of 4: 4'-diethoxycarbonylhydrazobenzene with alkylmalonyl chlorides give 4- alkyl-3: 5-dioxo-1: 2-di-pethoxycarbonylphenylpyrazolidines which on hydrolysis yield the corresponding carboxylic acids. Oxidation of methyl 4-aminosalicylate by sodium perborate