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    • 58. 发明授权
    • Preparation of N-substituted arylsulfonamides
    • N-取代芳基磺酰胺的制备
    • US4713489A
    • 1987-12-15
    • US820876
    • 1986-01-16
    • Gail H. BirumRichard F. Jansen
    • Gail H. BirumRichard F. Jansen
    • C07C311/15C07C143/79
    • C07C311/15
    • N-substituted arylsulfonamides which comprises the steps of (a) reacting an aryl hydrocarbon with chlorosulfonic acid to form a crude chlorosulfonation reaction product, (b) adding said crude reaction product to a mixture comprising an aliphatic amine, an alkali or alkaline earth metal hydroxide and water to form an amidation reaction mixture, (c) maintaining the temperature of the amidation reaction mixture at between about 50.degree. C. and 100.degree. C. and the pH at above about 7 with stirring for a period of time of up to about 2 hours, and optionally (d) separating the resulting N-substituted arylsulfonamide from the amidation reaction product.
    • N-取代的芳基磺酰胺,其包括以下步骤:(a)使芳基烃与氯磺酸反应以形成粗氯磺化反应产物,(b)将所述粗反应产物加入到包含脂族胺,碱金属或碱土金属氢氧化物 和水以形成酰胺化反应混合物,(c)将酰胺化反应混合物的温度保持在约50℃至100℃,pH高于约7,同时搅拌一段时间至多约 2小时,任选地(d)从酰胺化反应产物中分离得到的N-取代的芳基磺酰胺。