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    • 4. 发明申请
    • PROCESS FOR PRODUCING N-METHYL SUCCINIMIDE
    • 生产N-甲基琥珀酰亚胺的方法
    • WO2004058708B1
    • 2004-09-23
    • PCT/US0340106
    • 2003-12-16
    • BATTELLE MEMORIAL INSTITUTEWERPY TODD AFRYE JOHN G JRWHITE JAMES FHOLLADAY JOHNATHAN EZACHER ALAN H
    • WERPY TODD AFRYE JOHN G JRWHITE JAMES FHOLLADAY JOHNATHAN EZACHER ALAN H
    • C07D207/40C07D207/404
    • C07D207/404C07D207/267
    • The invention includes methods of processing an initial di-carbonyl compound by conversion to a cyclic compound. The cyclic compound is reacted with an alkyating agent to form a derivative having an alkylated ring nitrogen. The invention encompasses a method of producing an N-alkyl product. Amonia content of a solution is adjusted to produce a ratio of ammonia to di-carboxylate compound of from about 1:1 to about 1.5:1. An alkylating agent is added and the initial compound is alkylated and cyclized. The invention includes methods of making N-methyl pyrrolidinone (NMP). Aqueous ammonia and succinate is introduced into a vessel and ammonia is adjusted to provide a ratio of ammonia to succinate of less than 2:1. A methylating agent is reacted with succinate at a temperature of from greater than 100 °C to about 400 °C to produce N-methyl succinimide which is purified and hydrogenated to form NMP.
    • 本发明包括通过转化成环状化合物来处理初始二羰基化合物的方法。 该环状化合物与烷基化剂反应形成具有烷基化环氮的衍生物。 本发明包括生产N-烷基产物的方法。 调节溶液的氨含量以产生约1:1至约1.5:1的氨与二羧酸盐化合物的比率。 加入烷基化试剂并将初始化合物烷基化并环化。 本发明包括制备N-甲基吡咯烷酮(NMP)的方法。 将氨水和琥珀酸盐引入容器中并调节氨以提供小于2:1的氨与琥珀酸盐的比例。 使甲基化剂与琥珀酸酯在大于100℃至约400℃的温度下反应以产生N-甲基琥珀酰亚胺,将其纯化并氢化以形成NMP。