The Reduction of 4-Thiazones and 4-Thiazone-imines, and the Conversion of Triphenyl-4-thiazone to Thiazolium Salts

Z Takayanagi, H Kato, M Ohta

Index: Takayanagi,Z. et al. Bulletin of the Chemical Society of Japan, 1967 , vol. 40, p. 2930 - 2936

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Citation Number: 2

Abstract

The reduction of 4-thiazones and N-acetyl-4-thiazone-imines with sodium borohydride gave thiazolidin-4-ones and 4-acetylaminothiazolidines respectively. Attempts to isomerize 5- alkylidenethiazolidin-4-ones, prepared by the reduction of 5-acyl-4-thiazones, followed by dehydration, to 5-alkyl-4-thiazones were unsuccessful. The ethylation and acetylation of 2, 3, 5-triphenyl-4-thiazone gave the corresponding 4-ethoxy-and 4-acetoxy-thiazolium salts.