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    • 10. 发明申请
    • PROCESS FOR PREPARING AND/OR PURIFYING AMIDO ACID PHENYL ESTER SULFONATES
    • 制备和/或纯化氨基酸苯酯磺酸盐的方法
    • WO9909004A3
    • 1999-06-03
    • PCT/US9816807
    • 1998-08-13
    • PROCTER & GAMBLEDYKSTRA ROBERT RICHARDDUPONT JEFFREY SCOTTBURNS MICHAEL EUGENE
    • DYKSTRA ROBERT RICHARDDUPONT JEFFREY SCOTTBURNS MICHAEL EUGENE
    • C07C303/32C07C303/44C07C309/42
    • C07C303/44C07C303/32C07C309/42
    • The present invention relates to a process for the preparation of a purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino] alkanoate. The process comprises the steps of: (a) providing a source of 4-sulfophenyl-[(1-oxyalkanoyl)amino] alkanoate; (b) admixing the source with a water-based purification system to form a purification mixture, the water-based purification system having water present at a ratio of 4-sulfophenyl-[(1-oxyalkanoyl)amino] alkanoate to water ranging from about 1:0.05 to about 1:50, preferably from about 1:0.1 to about 1:40; (c) separating a purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino] alkanoate from the purification mixture; and (d) collecting said purified salt of 4-sulfophenyl-[(1-oxyalkanoyl)amino] alkanoate. In preferred embodiments, the purification mixture includes a processing aide such as ethyl alcohol, propyl alcohol, isopropyl alcohol, acetone and mixtures thereof.
    • 本发明涉及制备4-磺基苯基 - [(1-氧代烷酰基)氨基]链烷酸酯的纯化盐的方法。 该方法包括以下步骤:(a)提供4-磺基苯基 - [(1-氧代烷酰基)氨基]链烷酸酯的来源; (b)将来源与水基净化系统混合以形成纯化混合物,所述水基净化系统具有以4-磺基苯基 - [(1-氧代烷酰基)氨基]链烷酸酯的比例存在的水与约 1:0.05至约1:50,优选约1:0.1至约1:40; (c)从纯化混合物中分离纯化的4-磺基苯基 - [(1-氧代烷酰基)氨基]链烷酸盐; 和(d)收集所述纯化的4-磺基苯基 - [(1-氧代烷酰基)氨基]链烷酸盐。 在优选的实施方案中,纯化混合物包括加工助剂如乙醇,丙醇,异丙醇,丙酮及其混合物。