Patented Feb. 16, 1943 2,311,062
Patented Feb. 16, 1943 2,311,062 UNITED STATES PATENT OFFICE 2,311,062 HALOGEN SUBSTITUTED ACAMNO SULP BONCACDS Henry Martin, Basel, Hans Heinrich. Zaeslin, Glatthar,Riehen, near and Basel,Alfred and staub, Rudolf Basel, Hirt switter Curt land, assignors to J. R. Geigy A. G., Basel, Switzerland No Drawing. Application June 13, 1939, Serial No. 278,954. In Switzerland June 16, 1938 8 Claims. (C. 260-507) This invention relates to the production of heterocyclic, especially halogen and/or alkyl halogen Substituted acyl amino sulphonic acids, substituted amino Sulphonic acids leads to inter the products being useful for various purposes in esting water-soluble products. But also other industry. e. g., for protecting wool and other sub methods as for example treatment of carbon di stances against damage by moths, the protection Sulphide with the specified amino sulphonic acids being very fast to washing and fulling, and in in the presence of Suitable catalysts, for example Some cases as disinfecting agents, bactericides, hydrogen-peroxide or sulphur, leads to water fungicides, and seed steeping materials. Soluble thio-carbonic acid derivatives. It will be According to the present invention halogen understood that similar products can be obtained Substituted acyl amino sulphonic acids of the 10 by warming, melting or heating, in suitable sol aromatic or heterocyclic series are produced by vents or suspension media, the amino sulphonic the treatment of carbonic acid derivatives or acids with urea or thio-urea or urethanes, with thio-carbonic acid derivatives, or substances or separation of ammonia or alcohol. Furthermore, mixtures of substances forming these com by sulphonating completely condensed, difficultly pounds which may also contain sulphonic acid 5 Soluble or insoluble ureas, thio-ureas and ure groups with isocyclic or heterocyclic amines or thanes, containing at least one halogen atom, aminOSulphonic acids containing replaceable Sulphonic acids with surprisingly good properties hydrogen at the nitrogen atom, the reaction can be obtained.
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