[EN] PROCESS FOR THE OXIDATION OF SECONDARY AMINES INTO THE CORRESPONDING NITROXIDES<br/>[FR] PROCEDE D'OXYDATION D'AMINES SECONDAIRES EN NITROXYDES CORRESPONDANTS
申请人:CIBA SC HOLDING AG
公开号:WO2004085397A1
公开(公告)日:2004-10-07
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.
该发明涉及一种从相应的二级胺经过与有机过氧酸氧化制备二级亚硝基自由基的方法,包括以下步骤:a)向反应容器中加入二级胺,可选地与有机溶剂一起,并以一批次加入从碱金属、碱土金属或铵碳酸氢盐以及碱土金属或铵碳酸盐或它们的混合物中选择的碱作为固体形式与水一起或作为水浆;b)在搅拌下向反应混合物中加入1,0至2,5摩尔的过氧酸,每摩尔二级胺;c)分离有机相。