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

نویسندگان
Matloubi Moghaddam, F. ID 1
Hojabri, L. ID 2
Dekamin, M.G. ID 3
Akhlaghi, M. ID 4

1 Department of Chemistry,Sharif University of Technology

2 Department of Chemistry,Sharif University of Technology

3 Department of Chemistry,Iran University of Science and Technology

4 Department of Chemistry,Sharif University of Technology

doi
چکیده

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.

کلیدواژه‌ها
Mesoporous solid acid catalyst, Alkylation, Phenols, Microwave irradiation, Solvent free