发明名称 |
PROCESS TO PRODUCE ALKENOIC ACID ESTERS FROM LACTONES |
摘要 |
<p>This invention relates to a process for the preparation of alkenoic acid esters comprising contacting a lactone with an alcohol and an acidic heterogeneous catalyst, characterised in that the process is carried out in the presence of at least 20 ppm of an acid having a pKa of 5 or less, relative to the amount of the lactone. The presence of at least 20 ppm of an acid having a pKa of 5 or less may stabilise the catalyst during the reaction and may also be used for reactivating an acidic heterogeneous catalyst. The improved yield advantageously allows energy conservation.</p> |
申请公布号 |
WO2013092408(A1) |
申请公布日期 |
2013.06.27 |
申请号 |
WO2012EP75527 |
申请日期 |
2012.12.14 |
申请人 |
DSM IP ASSETS B.V. |
发明人 |
CASTELIJNS, ANNA MARIA CORNELIA FRANCISCA |
分类号 |
C07C67/03;B01J29/90;B01J38/60;B01J38/62;C07C67/327;C07C69/533 |
主分类号 |
C07C67/03 |
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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