The Reaction of 3,5-Diphenyl-1,2,4-dithiazol-1-ium Perchlorate with Active Methylene Compounds
作者:Isao Shibuya
DOI:10.1246/bcsj.57.605
日期:1984.2
The reaction of 3,5-diphenyl-1,2,4-dithiazol-1-ium perchlorate with several kinds of active methylenes gives a number of heterocycles, such as 4-hydroxy and 4-mercaptopyrimidine, pyrimidinone, and thiazole derivatives. On treatment with hydroxylamine-O-sulfonic acid, the 4-mercaptopyrimidines lead to the aminothio compounds or the isothiazolo[5,4-d]pyrimidine.
3,5-二苯基-1,2,4-二噻唑-1-鎓高氯酸盐与多种活性亚甲基反应生成多种杂环,如4-羟基和4-巯基嘧啶、嘧啶酮和噻唑衍生物。用羟胺-O-磺酸处理后,4-巯基嘧啶生成氨基硫代化合物或异噻唑并[5,4-d]嘧啶。