Hydroxylation of Phenol over M-MCM-48

Ch. Subrahmanyam1, B. Louis2, B. Viswanathan1 , A. Renken2 and T.K. Varadarajan1

1 Department of Chemistry, Indian Institute of Technology Madras, Chennai-600 036, India

2 Institute of Chemical Engineering, Swiss Federal Institute of Technology,

CH-1015 Lausanne, Switzerland

Abstract

The synthesis and characterization of M-MCM-48 (M= Si, Ti, V, Cr and Mn) materials have been carried out. These systems promote hydroxylation of phenol with 30 % H2O2 and the hydroxylation activity is highest for Ti-MCM-48. Water appears to be a better solvent than acetone and acetonitrile.