发明名称 |
Process for preparing N-methoxy derivatives of 4-hydroxy-2,2,6,6-tetramethylpiperidine and 2,2,6,6-tetramethyl-4-piperidone. |
摘要 |
N-Methoxy derivatives of the sterically hindered amines 4-hydroxy-2,2,6,6-tetramethylpiperidine and 2,2,6,6-tetramethyl-4-piperidone are prepared from the corresponding N-oxyl hindered amine by combining hydrogen peroxide and a peroxide-decomposing transition metal salt in the presence of dimethyl sulfoxide.
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申请公布号 |
EP0569334(A1) |
申请公布日期 |
1993.11.10 |
申请号 |
EP19930810319 |
申请日期 |
1993.04.30 |
申请人 |
CIBA-GEIGY AG |
发明人 |
GALBO, JAMES PETER |
分类号 |
B01J27/128;B01J27/122;B01J27/135;C07B61/00;C07D211/94;(IPC1-7):C07D211/94 |
主分类号 |
B01J27/128 |
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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