Titania supported silicotungstic acid: An efficient solid acid catalyst for veratrole acylation

被引：18

作者：

Waghmare, Nilesh G. ^{[1
]}

Kasinathan, Palraj ^{[1
]}

Amrute, Amol ^{[1
]}

Lucas, Nishita ^{[1
]}

Halligudi, S. B. ^{[1
]}

机构：

[1] Natl Chem Lab, Inorgan Chem & Catalysis Div, Pune 411008, Maharashtra, India

来源：

CATALYSIS COMMUNICATIONS | 2008年 / 9卷 / 10期

关键词：

titania; silicotungstic acid; veratrole; acylation; acetic anhydride;

D O I：

10.1016/j.catcom.2008.03.043

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Titania supported silicotungstic acid (STA) with different STA loading (10-25 wt%) and calcination temperature (650-750 degrees C) were prepared by wet impregnation method. The catalysts have been represented by a general formula xSTiO(2)y (where x denotes wt%, S denotes STA and y denotes calcination temperature in degrees C). These catalysts were characterized by techniques such as X-ray diffraction, surface analysis, FTIR-pyridine and TPD-NH3 and were used as heterogeneous solid acid catalysts in the liquid phase acylation of veratrole with acetic anhydride (Ac2O). It was found that 20STiO(2)700 gave the highest activity in acylation reaction due to its highest acidity. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：2026 / 2029

页数：4

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