Synthetic Communications

Highly Efficient Synthesis of Substituted Benzenes in the Presence of B (HSO4) 3 as a New and Reusable Catalyst Under Solvent-Free Conditions

HR Safaei, M Davoodi, M Shekouhy

Index: Safaei, Hamid Reza; Davoodi, Mansooreh; Shekouhy, Mohsen Synthetic Communications, 2013 , vol. 43, # 16 p. 2178 - 2190

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Citation Number: 9

Abstract

A highly efficient and simple procedure for the synthesis of substituted benzenes is described. A broad range of ketones (alkyl–aryl ketones and cyclic ketones) were condensed via a cyclotrimerization reaction in the presence of catalytic amounts of boron sulfonic acid [B(HSO 4 ) 3 ], a new, highly efficient, and reusable catalyst, under solvent-free conditions. All reactions completed in short times without formation of any by-products. The catalyst was ...