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51.发明授权PROCEDE DE PURIFICATION PAR HYDROGENATION CATALYTIQUE DE LACTAME CONTENANT DES IMPURETES CHLOROLACTAMES 有权PROCESS FOR CHOROLACTAMVERUNREINIGUNGEN含内酰胺的催化氢化提纯
公开(公告)号：EP1773765B1
公开(公告)日：2008-04-23
申请号：EP05788450.4
申请日：2005-07-12
Applicant: ARKEMA FRANCE
Inventor： HUB, Serge , LACROIX, Eric , BONNET, Philippe , DEVIC, Michel
IPC: C07D201/14
CPC classification number: C07D201/14 , C07D201/16
Abstract: The invention concerns a method for purifying cyclic lactams containing 6 to 12 carbon atoms and containing chlorolactams as impurities, by hydrogenation reaction in the presence of a metal catalyst, a solvent and a compound having a radical -NH2, -NH or -N
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