Cyclopentadienyl-ruthenium(II) complexes as efficient catalysts for the reduction of carbonyl compounds

- CpRu(PPh3)2Cl is highly efficient catalyst for the reduction of carbonyl compounds.
- The reductions can be performed under solvent free conditions.
- The catalyst CpRu(PPh3)2Cl can be use in 12 catalytic cycles with excellent activity.

This work reports the reduction of a large variety of aldehydes and ketones with the system PhSiH3/[CpRu(PPh3)2Cl] in good to excellent yields and high chemoselectivity. The catalyst [CpRu(PPh3)2Cl] can be used in at least 12 catalytic cycles with excellent catalytic activity and several substrates were reduced under solvent free conditions.

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