The Reduction of 4-Thiazones and 4-Thiazone-imines, and the Conversion of Triphenyl-4-thiazone to Thiazolium Salts
作者:Zenichi Takayanagi、Hiroshi Kato、Masaki Ohta
DOI:10.1246/bcsj.40.2930
日期:1967.12
The reduction of 4-thiazones and N-acetyl-4-thiazone-imines with sodiumborohydride 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