Scientia Iranica

Scientia Iranica

A New Eco-Friendly and Ecient Mesoporous Solid Acid Catalyst for the Alkylation of Phenols and Naphthols Under Microwave Irradiation and Solvent-Free Conditions

Authors
F. Matloubi Moghaddam 1
M. Akhlaghi 1
L. Hojabri 1
M.G. Dekamin 2
1 Department of Chemistry,Sharif University of Technology
2 Department of Chemistry,Iran University of Science and Technology
Abstract
The catalytic activity of a mixture of ZnCl2: AlCl3 supported on silica gel was evaluated for
the alkylation of phenols with benzyl alcohol, tret-butyl alcohol and styrene under microwave irradiation
and solvent-free conditions. The catalyst preparation method, its characterization and reusability, were
reported. The e ect of the phenol to benzyl alcohol ratio and the time of reaction on the phenol conversion
and distribution of products was investigated. A conversion percentage up to 97% was achieved when
hydroquinone was used. A selective ortho- directed alkylation for phenol, -naphthol and -naphthol was
observed.
Keywords
Mesoporous solid acid catalyst
Alkylation
Phenols
Microwave irradiation
Solvent free
Scientia Iranica
Volume 16, Issue 2 - Serial Number 2
Transactions on Chemistry and Chemical Engineering (C)
December 2009

  • Receive Date 12 May 2010