文献类型：期刊文献

英文题名：Fluorous biphase oxidation of ethyl benzene and benzyl alcohol catalyzed by perfluoroalkyl phthalocyanine complexes

作者：Qiu, Tao[1,2];Xu, Xiaoyong[1];Qian, Xuhong[1]

机构：[1]E China Univ Sci & Technol, Sch Pharm, Shanghai Key Lab Chem Biol, Shanghai 200237, Peoples R China;[2]Jiangsu Polytech Univ, Inst Fine Chem, Changzhou 213164, Peoples R China

年份：2009

卷号：84

期号：7

起止页码：1051

外文期刊名：JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY

收录：;EI(收录号：20093112222590);WOS:【SCI-EXPANDED(收录号:WOS:000267607000017)】；

基金：This work was supported financially by National High Technology Research and Development Program of China (863 Program 2006AA106201), National Natural Science Foundation of China. The authors also acknowledge partial support from Shanghai Leading Academic Discipline Project, Project Number (13507), Shanghai Education Committee and Shanghai Foundation of Science and Technology.

语种：英文

外文关键词：perfluoroalkyl phthalocyanines; fluorous biphasic catalysis; oxidation; ethyl benzene; benzyl alcohol

摘要：BACKGROUND: Ketones and aldehydes are important organic chemicals as intermediates for the pharmaceutical and fine-chemical industries. The existing oxidation reactions to obtain ketones and aldehydes are no longer sustainable because of the large amount of waste generated and use of stoichiometric reagents: a cleaner catalytic oxidation system needs to be developed. RESULTS: The experimental results show that cobalt (II) tetra-(perfluorohexyl) phthalocyaninate delivered a high catalytic activity for the oxidation of ethyl benzene (35% conversion and 86% selectivity to acetophenone) at 90 degrees C under ambient pressure of oxygen. The catalyst could be recycled for at least four runs. For the oxidation of benzyl alcohol to benzaldehyde, a conversion of 6% was achieved but with a selectivity of 100% at 90 degrees C under 2 x 10(5) Pa O-2. CONCLUSION: Perfluoroalkyl metallophthalocyanines can be used for the fluorous biphasic oxidation of ethyl benzene and benzyl alcohol with molecular oxygen. The cobalt (II) tetra-(perfluorohexyl) phthalocyaninate exhibited the highest catalytic activity for the oxidation of ethyl benzene. The catalytic oxidation of benzyl alcohol using our method may be feasible in industrial applications. (C) 2009 Society of Chemical Industry