This work reports environmentally benign route for the hydroarylation of styrene with p-cresol for the synthesis of 4-methyl-2-(1-phenylethyl)phenol. The Montmorillonite K-10 was found to be stable, active, economical and recyclable catalyst for the hydroarylation reaction. The catalyst is characterized with various techniques like XRD, SEM, EDAX, BET surface area, TPD-TPR and TGA. Effect of various reaction parameters like speed of agitation, catalyst loading, mole ratio and temperature were investigated. Furthermore, a second order rate equation is developed to describe the reaction kinetics, which was validated with experimental results. The activation energy was found to be 45.48 kcal/mol.
Department of Chemistry, Institute of Chemical Technology, N. Parekh Marg, Matunga, Mumbai-400 019, India.