Title:
第二級アミンの対応するニトロキシドへの酸化方法
Document Type and Number:
Japanese Patent JP2006521329
Kind Code:
A
Abstract:
The invention relates to a process for the preparation of secondary nitroxide radicals from their corresponding secondary amines by oxidation with an organic peracid, comprising the steps a) adding to a reaction vessel a secondary amine, optionally together with an organic solvent and in one batch a base selected from the group consisting of alkali metal, alkaline earth metal or ammonium bicarbonates and alkaline earth metal or ammonium carbonates or mixtures thereof in the form of a solid together with water or as an aqueous slurry; b) dosing a peracid under stirring to the reaction mixture in an amount of 1.0 to 2.5 mol per mol of secondary amine; and c) isolating the organic phase.
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Inventors:
Nesvadova, Peter
Byunyon, Luciennes
Von Buren, Martin
Byunyon, Luciennes
Von Buren, Martin
Application Number:
JP2006505470A
Publication Date:
September 21, 2006
Filing Date:
March 17, 2004
Export Citation:
Assignee:
Ciba Specialty Chemicals Holding Inc.
International Classes:
C07D211/94; C07B33/00; C07B43/00; C07B60/00; C07C291/04; C07D491/113
Domestic Patent References:
| JP2002534409A | 2002-10-15 | |||
| JP2004067680A | 2004-03-04 |
Foreign References:
| WO2002048159A1 | 2002-06-20 |
Attorney, Agent or Firm:
Hajime Tsukuni
Fumio Shinoda
Koshiro Tsukuda
Fumio Shinoda
Koshiro Tsukuda