Addition of Carboxylic Acids to Cyclic Olefins Catalyzed by Strong Acidic Ion-Exchange Resins
Addition of Carboxylic Acids to Cyclic Olefins Catalyzed by Strong Acidic Ion-Exchange Resins
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DOI：
10.1006/jcat.1998.2300
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发表时间：
1999-01
影响因子：
7.3
通讯作者：
A. Heidekum;M. Harmer;W. Hoelderich
中科院分区：
文献类型：
--
作者：
A. Heidekum;M. Harmer;W. Hoelderich
在以Nafion为载体的高分散强酸性离子交换树脂上，研究了几种环烯烃与饱和和不饱和羧酸的酯化反应。在这些新催化剂上，与原始材料相比，酸中心的可及性有了很大改善。与Amberlyst 15催化剂的活性进行了比较。当使用活性较低的烯烃时，尤其是在低温下，Nafion基催化剂材料优于酸性较弱的Amberlyst催化剂。
The esterification of several cyclic olefins with saturated and unsaturated carboxylic acids has been studied over highly dispersed strongly acidic ion-exchange resins based on Nafion, where the Nafion is entrapped within a porous silica matrix. Over these new catalysts the accessibility of the acid sites is much improved, in comparison to the original material. The activity has been compared to that of Amberlyst 15. The Nafion-based catalyst materials are superior to the weaker acidity Amberlyst catalysts when less active olefins are used and especially at low temperatures.