发明名称 |
PROCESS FOR THE PREPARATION OF N-CARBOXYANHYDRIDES |
摘要 |
The invention relates to a process for the preparation of N-carboxyanhydrides by reaction of the corresponding amino acid with phosgene, diphosgene and/or triphosgene in a solvent medium, characterized in that the reaction is a least partially carried out in the presence of an unsaturated organic compound which has one or more ethylenic double bonds, one of the carbon of at least one ethylenic double bond of which is completely substituted by substituents other than halogen atoms. The N-carboxyanhydrides are thus obtained with better yields and an improved purity.
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申请公布号 |
CA2360033(A1) |
申请公布日期 |
2002.04.30 |
申请号 |
CA20012360033 |
申请日期 |
2001.10.25 |
申请人 |
ISOCHEM |
发明人 |
ROBIN, YVES;SENET, JEAN-PIERRE;COPIER, JEAN-LUC;CORNILLE, FABRICE |
分类号 |
C07D263/32;C07D263/44;(IPC1-7):C07D263/44 |
主分类号 |
C07D263/32 |
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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