Amphiphilic phosphotungstate-paired ionic copolymer as a highly efficient catalyst for triphase epoxidation of alkenes with H2O2

Yan Leng; Jianghao Wu; Pingping Jiang

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Amphiphilic phosphotungstate-paired ionic copolymer as a highly efficient catalyst for triphase epoxidation of alkenes with H2O2

机译：两亲性磷酸苯甲酸苯甲酸离子共聚物作为高效催化剂，用于用H2O2烷氧化剂的三氧化物氧化

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A novel amphiphilic POM-paired ionic copolymer was prepared by the anion-exchange of a newly task-specific designed functionalized-ionic liquid copolymer with H3PW4O_(16), and characterized by FT-IR, SEM, TG, ~1H NMR, and elemental analysis. This catalyst was not only capable of catalyzing the epoxidation of alkenes in a liquid-liquid-solid triphase reaction system, showing high catalytic conversions and selectivity, but also avoids the use of chlorinated solvents. After reaction, the catalyst can be conveniently recovered and steadily reused without the change of catalyst structure. The unique amphiphilic catalyst structure is revealed to be responsible for the catalyst's excellent performances in the epoxidation of alkenes with H2O2 by accelerating the mass transfer.

机译：通过与H3PW4O_（16）的新任务特异性设计的功能化液体共聚物的阴离子交换制备了一种新型的两亲性POM生成离子共聚物（16），以FT-ir，SEM，SEM，TG，〜1H NMR和元素和元素和元素和元素和元素和元素为特征分析。该催化剂不仅能够催化液 - 液固醇三酶反应系统中烯烃的环氧化，还显示出高催化转化率和选择性，而且还避免了使用氯化溶剂。反应后，可以方便地恢复催化剂，并稳定地重复使用催化剂结构。揭示了独特的两亲性催化剂结构是催化剂通过加速质量转移而导致催化剂在用H2O2的烯烃环氧化中表现出色的。

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来源
《Catalysis science & technology》 |2014年第5期|1293-1300|共8页
作者
Yan Leng; Jianghao Wu; Pingping Jiang;
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作者单位

The Key laboratory of Food Colloids and Biotechnology, Ministry of Education, School of Chemical and Material Engineering, Jiangnan University, Wuxi 214122, China.;

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正文语种英语
中图分类汉语教学;
关键词
THREE-PHASE; hydrogen peroxide; EpoxidationalkenesCatalystsCopolymersChlorinated solventsMASS TRANSFER;

机译：三相;过氧化氢;环氧烯烃cOparystscomersphorymerasined溶剂转移;

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Amphiphilic phosphotungstate-paired ionic copolymer as a highly efficient catalyst for triphase epoxidation of alkenes with H2O2

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