2-Methyl-4-keto-1, 3-benzodioxanes from Salicylic Acids and Vinyl Acetate

DT Mowry, WH Yanko, EL Ringwald

Index: Mowry; Yanko; Ringwald Journal of the American Chemical Society, 1947 , vol. 69, p. 2358,2360

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Citation Number: 23

Abstract

Summary 1. a, P-Dichloroethyl ethyl ether, a-chlorobenzyl methyl ether, and triphenylchloromethane react with ketene to give the corresponding substituted acetyl chlorides. No catalyst is required to effect the reaction with a-chlorobenzyl methyl ether or with triphenylchloromethane in nitrobenzene. The reaction with a, P-dichloroethyl ethyl ether and with triphenylchloromethane in benzene takes place only in the presence of a catalyst ...