发明申请
- 专利标题： SYNTHESIS OF ALPHA,OMEGA-DICARBOXYLIC ACIDS AND ESTERS THEREOF FROM UNSATURATED FATTY ACID DERIVATIVES
- 专利标题（中）： 从不饱和脂肪酸衍生物合成ALPHA，欧米二酸和其酯
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申请号： US13424548申请日： 2012-03-20
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公开(公告)号： US20120245375A1公开(公告)日： 2012-09-27
- 发明人: Peter HANNEN , Harald Haeger , Martin Roos
- 申请人： Peter HANNEN , Harald Haeger , Martin Roos
- 申请人地址： DE Essen
- 专利权人： Evonik Degussa GmbH
- 当前专利权人： Evonik Degussa GmbH
- 当前专利权人地址： DE Essen
- 优先权： DE102011015150.8 20110325
- 主分类号： C07C67/44
- IPC分类号： C07C67/44
摘要：
A process for preparing an alpha, omega-dicarboxylic acid or an ester thereof, which includes (a) subjecting at least one unsaturated fatty acid or fatty acid derivative to ozonolysis to obtain an ozonolysis reaction mixture; and (b) oxidizing the ozonolysis reaction mixture with an oxidizing agent in the presence of an acid catalyst to obtain an oxidized reaction mixture comprising at least one alpha, omega-dicarboxylic acid or ester; wherein the process is performed using a solvent and the acid catalyst has a pKa of less than or equal to zero, as measured at 25° C.
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