Studies on Meso-ionic Compounds. VIII. Oxidation of Sydnones

M Hashimoto, M Ohta

Index: Hashimoto; Ohta Bulletin of the Chemical Society of Japan, 1958 , vol. 31, p. 1048

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Citation Number: 8

Abstract

Substitution reactions of 3-phenylsydnone and the behavior of 3-phenyl-4-bromosydnone suggest us that the sydnone nucleus is aromatic in character to a considerable extent. As many instances are known where a methyl substituent in aromatic heterocycles is oxidized to a carboxylic group, it seemed possible to oxidize 4-methylsydnones to corresponding 4- carboxylic acid derivatives. Although this was not realized, we found an interesting ...