Air-stable titanocene bis(perfluorooctanesulfonate) as a new catalyst for acylation of alcohols, phenols, thiols, and amines under solvent-free condition
作者:Renhua Qiu、Guoping Zhang、Xiaofang Ren、Xinhua Xu、Ronghua Yang、Shenglian Luo、Shuangfeng Yin
DOI:10.1016/j.jorganchem.2010.01.025
日期:2010.4
as a catalyst for acylation reactions. It was found that using equimolar acetic anhydride as acetylating agent and under solvent-free condition, Cp2Ti(OSO2C8F17)2 exhibits high activity and selectivity in the acetylation of various alcohols, phenols, thiols, and amines. Also, good catalytic efficiency is observed in the acylation of 2-phenylethanol across various acylating reagents. The catalyst can
由Cp 2 TiCl 2和AgOSO 2 C 8 F 17制备具有高路易斯酸度的空气稳定的钛茂双(全氟辛烷磺酸)[Cp 2 Ti(OSO 2 C 8 F 17)2 ] 。该化合物用不同的技术表征,并作为酰化反应的催化剂进行了研究。发现使用等摩尔乙酸酐作为乙酰化剂,并且在无溶剂条件下,Cp 2 Ti(OSO 2 C 8 F 17)2在各种醇,酚,硫醇和胺的乙酰化反应中表现出高活性和选择性。同样,在各种酰化剂之间的2-苯基乙醇的酰化中观察到良好的催化效率。在十个循环的测试中,催化剂可以重复使用而不会失去活性。Cp 2 Ti(OSO 2 C 8 F 17)2催化剂为醇,酚,硫醇和胺的酰化提供了一种简单,有效和通用的方法。