Iridium-catalyzed benzylic C–H activation and functionalization of alkyl arenes

A recyclable catalyst, Ir/C, gives C–H benzylic functionalization of simple arenes to afford aldehydes, esters, and imines. In the case of esters, an additive, Ag2CO3, acts as base and oxidant, while for imine formation no additive is necessary. In this latter case a double C–H activation is proposed, accompanied by loss of H2.

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