in octane treatment of 5 equiv. of bis(pinacolato)diboron with IrPh(OAc)(Me2C6H(C3H2NOMe2)2) in n-octane at 100°C for 24 h;

in octane treatment of IrPh(OAc)(Me2C6H(C3H2NOMe2)2) with pinacolborane in n-octane at 100°C for 24 h;