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Benzylation of aromatics on tin-containing mesoporous materials

Paper ID Volume ID Publish Year Pages File Format Full-Text
43996 45998 2007 8 PDF Available
Title
Benzylation of aromatics on tin-containing mesoporous materials
Abstract

The benzylation of benzene and substituted benzenes reaction employing benzyl chloride as the alkylating agent over a series of tin-containing mesoporous silicas with different Sn contents has been investigated. These materials (Sn-HMS-n) have been characterized by elemental analysis, DRX method, N2 adsorption Measurements (BET and BJH theory), XPS, UV–vis, FTIR and Mössbauer spectroscopic methods. The mesoporous tin-containing materials showed both high activity and high selectivity for benzylation of benzene. The activity of these catalysts for the benzylation of different aromatic compounds is in the following order: benzene > toluene > p-xylene > anisole. More interesting is the observation that this catalyst is always active and selective for large molecules like naphthenic compounds such as methoxynaphthalene and he can also be reused in the benzylation of benzene for several times. Kinetics of the benzene benzylation over these catalysts has also been investigated.

Graphical abstractThe benzylation of benzene and substituted benzenes reaction employing benzyl chloride as the alkylating agent over a series of tin-containing mesoporous silicas (Sn-HMS-n) with different Sn contents (n = Si/Sn) has been investigated. These materials have been characterized by elemental analysis, DRX method, N2 adsorption measurements (BET and BJH theory), XPS, UV–vis, FTIR and Mössbauer spectroscopic methods.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Benzylation of aromatics; Benzyl chloride; Tin-mesoporous materials; Diphenylmethane
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 319, 1 March 2007, Pages 259–266
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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