Abstract

Triarylindium reagents were efficiently synthesized via directed deprotonation and subsequent transmetallation. They were successfully subjected to Pd-catalyzed cross-coupling reactions with aryl- and heteroarylhalides/-triflates and a vinyltriflate. All three aryl groups attached to the indium were efficiently transferred providing the desired products in high yields. In the case of heteroaryl-heteroaryl coupling reactions, triorganoindium compounds were shown to even exceed the yields of their boronic ester or stannane counterparts.

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