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1.发明授权Substituted [1,3,5-triazinyl-(6)]-aminophenyl-arsonic acids and process for manufacture of same 失效取代的[1,3,5-三嗪基 - （6）] - 氨基苯基 - 砷酸及其制备方法
公开(公告)号：US2295574A
公开(公告)日：1942-09-15
申请号：US31023239
申请日：1939-12-20
摘要： 537,690. Organo-arsenic compounds. FRIEDHEIM, E. A. H. Dec. 27, 1939, No. 32910. Convention date, Dec. 23, 1938. [Class 2 (iii)] Derivatives of (1 : 3 : 5-triazinyl -6)-aminophenylarsonic acids, which have therapeutic properties, are made by reacting halogen or amino derivatives of 1 :3 :5-triazine with phenylarsonic acid amino or halogen derivatives, the products, when containing halogen, being further treated if desired with ammonia or alkylamines. Ir. examples (1) sodium paminophenyl-arsonate is reacted with cyanuric chloride, and the resulting p-(2 : 4-dichloro- 1 : 3 : 5-triazinyl-6)-aminophenylarsonic acid is treated with ammonia to replace one or both chlorine atoms by an amino group, and (2) sodium-p-amino-phenyl-arsonate is reacted with chlorocyanuric-diamide, and the product reacted with methylamine to produce p-(2: 4- dimethylamino-1: 3: 5-trazinyl-6)-aminophenylarsonic acid. Melamine may also be reacted with halogenophenyl-arsonic acids to yield the same products, and the p-aminophenylarsonic acid may be replaced by its substitution products or isomers, such as 4-hydroxy-3- aminophenylarsonic acid or 2-hydroxy-4-aminophenylarsonic acid.
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2.发明授权
公开(公告)号：US2235478A
公开(公告)日：1941-03-18
申请号：US32523140
申请日：1940-03-21
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3.发明授权Azo dyestuff from para-amino-phenyl-arsonic acid and process for the manufacture of same 失效来自对氨基苯基 - 砷酸的偶氮染料及其制备方法
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