High purity 1,3-dialkyl-2-imidazolidinone and preparation process of same
    1.
    发明授权
    High purity 1,3-dialkyl-2-imidazolidinone and preparation process of same 失效
    高纯度1,3-二烷基-2-咪唑啉酮及其制备方法

    公开(公告)号:US5872260A

    公开(公告)日:1999-02-16

    申请号:US897768

    申请日:1997-07-21

    IPC分类号: C07D233/32

    CPC分类号: C07D233/32

    摘要: In a process for reacting N,N'-dialkylethylenediamine with urea in an aprotic polar solvent to prepare 1,3-dialkyl-2-imidazolidinone, a process comprising progressing the reaction while continuously adding N,N'-dialkylethylnediamine and urea into the aprotic polar solvent. The process is a high-yield manufacturing process in industry capable of efficiently producing very high purity 1,3-dialkyl-2-imidazolidinone which contains less than 0.1% by weight of by-product 1,3-dialkyl-2-imidazolidinimine derived from the raw materials.

    摘要翻译: 在非质子极性溶剂中使N,N'-二烷基乙二胺与脲反应以制备1,3-二烷基-2-咪唑啉酮的方法,包括进行反应,同时连续加入N,N'-二烷基乙二胺和尿素至非质子传递 极性溶剂。 该方法是能够有效地生产非常高纯度的1,3-二烷基-2-咪唑啉酮的工业中的高产量制备方法,该1,3-二烷基-2-咪唑啉酮含有少于0.1%重量的副产物1,3-二烷基-2-咪唑啉亚胺衍生自 的原料。