Studies on Pyrethrins The Synthesis of Some β-Keto Esters

M Matsui, T Yamaguchi, T Kato, G Funazo

Index: Matsui et al. Bulletin of the Chemical Society of Japan, 1953 ,  vol. 26, p. 194,195            

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Abstract

A new procedure for preparing β-keto esters from methyl ketones, sodamide and diethyl carbonate using these reagents in the molar ratio of 1: 3: 3 is reported. The yields of β-keto esters approach to those of the preparation using sodium hydride as condensing agent. Furthermore, some cyclopentenolones were prepared from the β-keto esters synthesized by this-procedure.