| 发明名称 |
Process for the preparation of 1-oxa-3,8-diaza-4-oxo-spiro(4.5)decane compounds |
| 摘要 |
The reaction for the preparation of 1-oxa-3,8-diaza-4-oxo-spiro[4.5]decane compounds of the formula <IMAGE> proceeds more rapidly and more completely if it is performed in the presence of a phase transfer catalyst in an aromatic hydrocarbon which is liquid at room temperature.
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| 申请公布号 |
US4689416(A) |
申请公布日期 |
1987.08.25 |
| 申请号 |
US19860883170 |
申请日期 |
1986.07.08 |
| 申请人 |
HOECHST AKTIENGELLSCHAFT |
发明人 |
ERTL, JOSEF;WIEZER, HARTMUT |
| 分类号 |
B01J31/00;B01J31/02;C07B61/00;C07D498/10;C07D498/20;C07D519/00;(IPC1-7):C07D498/10 |
主分类号 |
B01J31/00 |
| 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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