Air-stable titanocene bis(perfluorooctanesulfonate) as a new catalyst for acylation of alcohols, phenols, thiols, and amines under solvent-free condition

被引：26

作者：

Qiu, Renhua ^{[1
]}

Zhang, Guoping ^{[1
]}

Ren, Xiaofang ^{[1
]}

Xu, Xinhua ^{[1
]}

Yang, Ronghua ^{[1
]}

Luo, Shenglian ^{[1
]}

Yin, Shuangfeng ^{[1
]}

机构：

[1] Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 2010年 / 695卷 / 08期

基金：

中国国家自然科学基金;

关键词：

Acylation; Titanocene; Perfluorooctanesulfonate; Lewis acid; Catalyst; HIGHLY EFFICIENT CATALYST; SCANDIUM TRIFLUOROMETHANESULFONATE; HOMOGENEOUS CATALYSIS; PRACTICAL ACYLATION; VERSATILE CATALYST; CARBOXYLIC-ACIDS; ACETIC-ANHYDRIDE; SILICA-GEL; ACETYLATION; CHLORIDE;

D O I：

10.1016/j.jorganchem.2010.01.025

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Air-stable titanocene bis(perfluorooctanesulfonate) [Cp2Ti(OSO2C8F17)(2)] that shows high Lewis acidity was prepared from Cp2TiCl2 and AgOSO2C8F17. The compound was characterized by different techniques, and examined 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 be reused without loss of activity in a test of ten cycles. The Cp2Ti(OSO2C8F17)(2) catalyst affords a simple, efficient and general method for the acylation of alcohols, phenols, thiols, and amines. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：1182 / 1188

页数：7

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