发明授权
US06437145B1 Method of producing oxazolidinones, the use thereof and oxazolidinones
失效
生产恶唑烷酮的方法，其用途和恶唑烷酮
- 专利标题： Method of producing oxazolidinones, the use thereof and oxazolidinones
- 专利标题（中）： 生产恶唑烷酮的方法，其用途和恶唑烷酮
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申请号： US09542278申请日： 2000-04-04
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公开(公告)号： US06437145B1公开(公告)日： 2002-08-20
- 发明人: Karlheinz Drauz , Günter Knaup , Stefan Retzow
- 申请人： Karlheinz Drauz , Günter Knaup , Stefan Retzow
- 优先权： DE19505932 19950221
- 主分类号： C07D26308
- IPC分类号： C07D26308
摘要：
The invention concerns a method of producing oxazolidinones of formula (I), wherein R1-R5 have the meanings given in the description, by reacting cyclical anhydrides of formula (II) with carbonyl compounds of general formula (III) at temperatures between ambient temperature and approximately 150° C. The invention also concerns the production of the cyclical anhydrides of formula (II) by reacting N-protected aminodicarboxylic acids of formula (IV) with a dehydrating agent in situ. The invention further concerns the use of oxazolidinones of formula (I) for the &agr;-selective production of esters of formula (V) and amides of general formula (VII).
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