[Ir(cod)Cl]2/FDPPE-catalyzed chemo- and regioselective cyclotrimerization of two different terminal alkynes to give 1,3,5-trisubstituted benzenes.

[摘要]：[Ir(cod)Cl]2 in combination with 1,2-bis(dipentafluorophenylphosphino)ethane (FDPPE) catalyzes chemo- and regioselective cyclotrimerization of two different alkynes. Thus, the reaction of propiolate with 1-hexyne gave 3,5-dibutylbenzoate as a single product in 88% yield.

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