Chemistry Letters, Vol.37, No.3, 298-299, 2008
Activation and dehydrogenative silylation of the C-H bonds of phosphine-coordinated ruthenium in Lu/Ru heteromultimetallic hydride complexes
The reaction of half-sandwich lutetium dialkyl complex Cp*Lu(CH2SiMe3)(2)(THF) (CP*= C5Me5) with ruthenium-trihydrido-phosphine complexes Cp*Ru(PR3)H-3 (R-3 = Ph-3, Ph2Me, PhMe2, and Me-3) at 50 degrees C afforded the corresponding Lu/Ru heterobimetallic dihydride complexes, which was accompanied by selective C-H bond activation of the phosphine ligand. The reaction of such a resulting phosphinomethyl-bridged Lu/Ru complex with PhSiH3 led to selective dehydrogenative silylation at the "CH2" unit.