| 发明名称 |
PROCESS FOR THE PREPARATION OF DIMETHYLMALEIC ANHYDRIDE |
| 摘要 |
<p>Process for the preparation of dimethylmaleic anhydride The reaction of maleic acid, fumaric acid and/or maleic anhydride at elevated temperature and in the presence of catalytic amounts of a heterocyclic amidine or a salt thereof with protonic acids affords dimethylmaleic anhydride in good yield.</p> |
| 申请公布号 |
CA1229616(A) |
申请公布日期 |
1987.11.24 |
| 申请号 |
CA19850488578 |
申请日期 |
1985.08.13 |
| 申请人 |
CIBA-GEIGY AG |
发明人 |
BAUMANN, MARCUS;BREITENSTEIN, WERNER |
| 分类号 |
C07D307/60;B01J31/00;B01J31/02;C07B61/00;C07C51/56;C07C51/567;(IPC1-7):C07D307/60 |
主分类号 |
C07D307/60 |
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