发明名称 |
PROCESS FOR THE SYNTHESIS OF 4-SUBSTITUTED N-[(ALK-2- EN-1-YL)OXY]- AND N-ARALKYLOXY- 2,2,6,6-TETRAALKYLPIPERIDINES |
摘要 |
An environmentally friendly process for the preparation of the 4- functionalized N-OR derivatives of 2,2,6,6-tetraalkylpiperidines involves the hydrogen peroxide of the corresponding N-H compound to form the corresponding N-oxyl derivative, reacting two equivalents of the N-oxyl compound with one equivalent of a compound having an allylic hydrogen, a benzylic hydrogen or an activated methine hydrogen to form one equivalent of the corresponding N-OH compound and one equivalent of the corresponding N-OR compound, and recycling the N-OH compound back to the corresponding N-oxyl compound using hydrogen peroxide or air.
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申请公布号 |
CA2343786(C) |
申请公布日期 |
2009.04.07 |
申请号 |
CA19992343786 |
申请日期 |
1999.10.05 |
申请人 |
CIBA SPECIALTY CHEMICALS HOLDING INC. |
发明人 |
CUNKLE, GLEN THOMAS;PASTOR, STEPHEN DANIEL;BABIARZ, JOSEPH EDMUND |
分类号 |
C07D211/94 |
主分类号 |
C07D211/94 |
代理机构 |
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代理人 |
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地址 |
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