发明名称 |
Process for the preparation of -caprolactam and -caprolactam precursors |
摘要 |
Process for the preparation of epsilon -caprolactam and epsilon -caprolactam precursors, starting from the corresponding 5-formylvalerate ester, ammonia and hydrogen in the presence of a hydrogenation catalyst, wherein in a first step 5-formylvalerate ester is reacted with ammonia under non-hydrogenating conditions, and in a second step the reaction product obtained in the first step is converted to epsilon -caprolactam and the epsilon -caprolactam precursor(s) under hydrogenating conditions in the presence of ammonia. |
申请公布号 |
SG42357(A1) |
申请公布日期 |
1997.08.15 |
申请号 |
SG19960006432 |
申请日期 |
1996.03.01 |
申请人 |
DSM N.V.;E.I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
HERKES FRANK EDWARD;WOLTERS HENRICUS FRANCISCUS WILHELMUS;HAASEN NICOLAAS FRANCISCUS;LANE SAMUEL LIVINGSTON;BUIJS WIM |
分类号 |
C07D237/06;B01J23/46;B01J25/02;C07B61/00;C07D201/08 |
主分类号 |
C07D237/06 |
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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