Functional Ionic Liquids as Efficient and Recyclable Catalysts for the Methylation of Formaldehyde with Aromatics
作者:Heyuan Song、Fuxiang Jin、Ronghua Jin、Meirong Kang、Zhen Li、Jing Chen
DOI:10.1007/s10562-016-1750-5
日期:2016.7
Methylation of formaldehyde with various aromatics under functional ionic liquids catalysis has been developed. Among the ionic liquids investigated, triphenyl-(4-sulfobutyl)-phosphonium triflate ([TTPBs][CF3SO3]) showed high activity and afforded excellent yields of diarylmethane derivatives. A mechanism for the catalytic performance of [TTPBs][CF3SO3] is proposed. Besides, the catalyst can simply
已经开发了在功能性离子液体催化下甲醛与各种芳烃的甲基化。在所研究的离子液体中,三苯基-(4-磺丁基)-鏻三氟甲磺酸盐 ([TTPBs][CF3SO3]) 显示出高活性并提供了优异的二芳基甲烷衍生物收率。提出了[TTPBs][CF3SO3]催化性能的机制。此外,该催化剂可以通过离心简单地从反应混合物中分离出来,并且可以循环使用十次,而没有明显的活性损失。 图文摘要 使用高效且可回收的功能性离子液体作为催化剂,通过甲醛与芳烃的甲基化成功合成了二芳基甲烷衍生物,收率极好和选择性是在无溶剂条件下获得的。该催化剂至少连续重复使用十次,其催化活性没有明显损失。同时,探索了催化剂的可用性。