New Supported Ionic Liquid as Catalyst for arylation of diorgano diselenides with arylboronic acids

Abstract

Research on organoselenides has been driven by the potential applications of selenium compounds in modern organic synthesis and catalysis. 1 Among these organoselenium compounds, aryland vinyl selenides are certainly the most applied compounds in organic synthesis. A large number of methodologies have been reported to prepare these compounds; however, the reaction often needs harsh reaction conditions or non-recyclable catalysts. 2 In this context, the use of ionic liquids (IL) as recyclable solvent for mild preparation of diorganyl selenides was recently described. 3 On the basis of economic criteria and possible toxicological concerns, it is desirable to minimize the amount of utilized ionic liquid and catalyst in a potential process. Thus, the concept of supported ionic liquid catalysis (SILC) 4 emerges as alternative for green synthesis of organoselenium compounds. Therefore, herein we disclose a new and efficient methodology to prepare diorganyl selenides employing the SILC system with In (III) lewis acid as anion (Scheme 1).