Abstract
Ruthenium(II) nitrosyl complexes with polypyrazolylmethanes, [(Bpm)Ru(NO)Cl 3] [Bpm = bis(1-pyrazolyl)methane, 1], [(Bpm ∗)Ru(NO)Cl 3] [Bpm ∗ = bis(3,5-dimethyl-1-pyrazolyl)methane, 2], [(Tpm)Ru(NO)Cl 2][PF 6] [Tpm = tris(1-pyrazolyl)methane, 3], and [(Tpm ∗)Ru(NO)Cl 2][PF 6] [Tpm ∗ = tris(3,5-dimethyl-1-pyrazolyl)methane, 4], have been synthesized and characterized. The solid-state structures of [(Bpm ∗)Ru(NO)Cl 3] ( 2) and [(Tpm ∗)Ru(NO)Cl 2][PF 6] ( 4) were determined by single-crystal X-ray crystallographic analyses. These complexes have been tested as catalysts in the transfer hydrogenation of several ketones under mild conditions.
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