摘要:
The cationic iridium(I) complex having a heterochelate ligand, [Ir(cod)(PN/CH3)]PF6 {PN/CH3 = o-Ph2PC6H4CH(CH3)OCH2(C5H4N-2)} (3) was prepared and characterized. Complex 3 underwent stereoselective facile activation of the benzylic C–H bond in CH3CN at 50 °C to produce the oxidative addition product, a hydrido alkyl complex fac-4 after displacement of COD by 2 molecules of CH3CN. The initially generated fac-4 isomerized gradually to give the geometrical isomer selectively mer-4 in CH3CN.