中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | (4-Amino-5-phenyl-4H-[1,2,4]triazol-3-ylsulfanyl)-acetic acid methyl ester | 111828-07-0 | C11H12N4O2S | 264.308 |
—— | ethyl 2-[(4-amino-5-phenyl-4H-1,2,4-triazol-3-yl)thio]acetate | 169304-24-9 | C12H14N4O2S | 278.335 |
—— | 4-Amino-3-cyanomethylthio-5-phenyl-1,2,4-triazole | 111828-01-4 | C10H9N5S | 231.281 |
The following heterocyclic mercapto compounds are heated in aqueous solution with sodium chloroacetate to give the corresponding carboxymethylmercapto-derivatives; 1-phenyl-2-imidazole-thione, 2-mercaptopyrimidine and its 4, 6-diamino-, 4, 5, 6-triamino, 4-amino-6-hydroxy or 4-hydroxy-6-methylderivatives, 2-mercaptobenzoxazole, 2-mercaptobenzthiazole, 3-phenyl (or amino)-4-amino-5-mercapto- 1, 2, 4-triazole, 3-mercapto-5-hydroxy (or phenyl) 6-methyl-1, 2, 4-triazine and 2-mercapto-imidazoline and its 4-methyl-derivative. 2-Carboxymethylmercapto- 4, 6-diamino-S-triazine is prepared by adding chloroacetic acid to a solution of 4, 6-diamino-2-mercapto-s-triazine in aqueous sodium hydroxide. 2-(1-Carboxyoctylmercapto)-4, 6-diamino-S-triazine is prepared by stirring a solution of a -bromopelargonic acid and 4, 6-diamino-2-mercapto-s-triazine in aqueous sodium hydroxide. 2-Carboxymethylmercapto-imidazoline chloroacetate is prepared by p boiling 2-mercapto-imidazoline and chloroacetic acid in water. Specifications 235,211 and 634,951 are referred to.