Associative Stereomutation of a Pentacoordinate Transition-Metal Complex: Access to the Required Octahedral Instermediate through Stereoselective CO Uptake at an Unsaturated Ruthenium (II) Center

摘要

Reaction of SiH(Me)(CH_2CH_2CH_2PPh_2)_2 (i.e. "biPSiH") with mer-RuH(PPh_3)_3(CO)Cl affords the 5-co-ordinate Ru(II) monocarbonyl chloride Ru(BiPSi)(CO)-Cl (1), which adds CO to yield the 6-coordinate dicarbonyl analogue Ru(biPSi)(CO)_2Cl (2).