51803-15-7Relevant articles and documents
The Reaction of 3,5-Diphenyl-1,2,4-dithiazol-1-ium Perchlorate with Active Methylene Compounds
Shibuya, Isao
, p. 605 - 606 (1984)
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 isothiazolopyrimidine.
The Reaction of 2,4,6-Triphenyl-1,3,5-thiadiazin-1-ium Salt with Active Methylene Compounds
Shibuya, Isao
, p. 2158 - 2160 (2007/10/02)
The reaction of 2,4,6-triphenyl-1,3,5-thiadiazin-1-ium tetrafluoroborate with several active methylene compounds was studied.Nitromethane and nitroethane gave 2H-1,3,5-thiadiazines.The compounds possessing a benzoyl group reacted with this salt to give 5-