Iridium-catalyzed allyl–allyl cross-coupling of allylic carbonates with (E)-1,3-diarylpropenes

An efficient Ir-catalyzed allyl–allyl cross-coupling reaction of allylic carbonates with (E)-1,3-diarylpropenes was developed to form linear allylated products, 1,5-dienes, regioselectively in excellent yields and with high turnover numbers (up to 2000 S/Ir).