Bulky Diarylammonium Arenesulfonates as Selective Esterification Catalysts
Bulky Diarylammonium Arenesulfonates as Selective Esterification Catalysts
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DOI：
10.1055/s-2005-869884
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发表时间：
2005-07
期刊：
影响因子：
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通讯作者：
K. Ishihara;Shoko Nakagawa;A. Sakakura
中科院分区：
文献类型：
--
作者：
K. Ishihara;Shoko Nakagawa;A. Sakakura
意义：发现聚合物负载的大体积二芳基苯磺酸铵催化剂可促进4-苯基丁酸与1-辛醇的直接酯缩合反应，收率达99%以上。催化剂很容易回收并通过过滤重新使用。催化剂的循环使用重复了9次，在此期间没有观察到催化活性的损失。
Significance: Polymer-supported bulky diarylammonium arenesulfonate catalyst was found to pro-mote the direct ester condensation reaction of 4-phenylbutyric acid with 1-octanol to give 1-octyl 4-phenylbutyrate in over 99% yield. The catalyst was readily recovered and reused by filtration. The recycling of the catalyst was repeated nine times during which no loss of catalytic activity was ob-served.