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    • 6. 发明申请
    • Process For Preparing N-Substituted Cyclic Imides
    • N-取代的环状酰亚胺的制备方法
    • US20110319635A1
    • 2011-12-29
    • US13202128
    • 2010-02-01
    • Helge Jaensch
    • Helge Jaensch
    • C07D209/48
    • C07D209/48
    • In a process for making an N-substituted phthalimide compound, an amine is contacted with a carboxylic acid anhydride and allowed to react in an aqueous solution at a pH of about 2 to about 6. Optionally, the reactants are combined with an acid to lower the pH of the reaction solution wherein the lowering of the pH optimizes the yield of the desired N-substituted phthalimide product. The N-substituted phthalimide may be, for example, N-hydroxyphthalimide, and the reactants may be phthalic anhydride and hydroxylamine or a salt thereof. The N-substituted phthalimide compound is useful for, among other things, the oxidation of various hydrocarbons.
    • 在制备N-取代的邻苯二甲酰亚胺化合物的方法中,胺与羧酸酐接触,并使其在约2至约6的pH下在水溶液中反应。任选地,将反应物与酸组合以降低 其中降低pH的反应溶液的pH优化所需N-取代的邻苯二甲酰亚胺产物的产率。 N-取代邻苯二甲酰亚胺可以是例如N-羟基邻苯二甲酰亚胺,反应物可以是邻苯二甲酸酐和羟胺或其盐。 N-取代的邻苯二甲酰亚胺化合物尤其可用于各种烃的氧化。