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Friedel-Crafts Alkylation of Mesitylene with tert-Butyl Alcohol over Novel Solid Acid Catalyst UDCaT-5 by Ganapati D. Yadav and Shashikant B. Kamble is a Engineering article available to read on EtoBox.

What is Friedel-Crafts Alkylation of Mesitylene with tert-Butyl Alcohol over Novel Solid Acid Catalyst UDCaT-5 about?

Alkylation of mesitylene with tert-butyl alcohol in the presence of novel mesoporous superacidic catalysts, namely, UDCaT-4, UDCaT-5 and UDCaT-6 was investigated. The catalysts are modified versions of zirconia showing high catalytic activity, stability and reusability in the presence of water as compared to conventional sulfated zirconia. The catalytic activity is in the order: UDCaT-5 (most active) > UDCaT-6 > UDCaT-4 > sulfated zirconia (S-ZrO2) (least active). The synergistic effect of the very high sulfur content present (9% w/w S) and the preservation of the tetragonal phase in UDCaT-5, in comparison with sulfated zirconia (4% w/w S), were responsible for higher catalytic activity. A catalyst ensuring the production of 2-tert-butyl-mesitylene (2-TBMT) with 98% selectivity and 94% conversion of tert-butanol (TBA) was developed under optimum reaction conditions. The formation of products is correlated with the acidity of the catalyst. The reactions were conducted in liquid phase at relatively low reaction temperatures (120150 °C). A systematic investigation of the effects of various operating parameters was accomplished and a mathematical model is developed to describe the rea

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Author

Ganapati D. Yadav and Shashikant B. Kamble

Publisher

Walter de Gruyter GmbH & Co. KG; Walter de Gruyter GmbH (ISSN 2194-5748)

Published

2009

Language

EN

Field

Engineering (Physical Sciences)