发明名称 |
Process for the preparation of oxazolidinones novel oxazolidinones and the use of oxazolidinones |
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 alpha-selective production of esters of formula (V) and amides of general formula (VII). |
申请公布号 |
ZA9601346(B) |
申请公布日期 |
1996.08.26 |
申请号 |
ZA19960001346 |
申请日期 |
1996.02.20 |
申请人 |
DEGUSSA AKTIENGESELLSCHAFT. |
发明人 |
KARLHEINZ DRAUZ;GUENTER KNAUP;STEFAN RETZOW |
分类号 |
C07C231/14;C07C237/22;C07D263/18 |
主分类号 |
C07C231/14 |
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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