发明名称 |
Process for the manufacture of substituted maleimides. |
摘要 |
<p>In a process for the preparation of substituted maleimides the corresponding amines are reacted with maleic anhydride and the thermal imidization of the resulting substituted amic-acids is effected in a mixed apolar/polar aprotic solvent medium in the presence of an acid catalyst, a substantial portion of the apolar solvent is subsequently selectively removed from the reaction mixture and most of the final product is precipitated. <IMAGE></p> |
申请公布号 |
EP0499959(A1) |
申请公布日期 |
1992.08.26 |
申请号 |
EP19920102323 |
申请日期 |
1992.02.12 |
申请人 |
BROMINE COMPOUNDS LTD. |
发明人 |
ADDA, MICHEL;EIDELMAN, CHAIM;SHORR, LEONARD |
分类号 |
B01J27/02;B01J27/16;B01J31/02;C07B61/00;C07D207/44;C07D207/448;C07D207/452 |
主分类号 |
B01J27/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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