Tris(2-pyridyl)phosphine complexes of ruthenium(II) and rhodium(I). Hydroformylation of hex-1-ene by rhodium complexes

Tris(2-pyridyl)phosphine

“…However, both monodentate P and bidentate P,N coordination have been reported for the (2-py)3P ligand in a series of Ru and Rh compounds, e.g. RuHCI{(2-py)aP}a and RhCI{(2-py)aP}2 (Kurtev, Ribola, Jones, Cole-Hamilton & Wilkinson, 1980). The only crystallographic characterization of a compound containing (2-py)3P is that for the [Ru{(2-py)3P}2] 2+ cation in which (2-py)aP adopts the more common tridentate mode of coordination (Stephenson, Keene, Snow & Tiekink, 1988).…”

Synthesis, characterization, and reactivity of a ruthenium(II)N,N′,N″-tris(2-pyridyl)phosphine complex. X-ray analysis of RuCl2(PPh3)(Ppy3) (py = 2-pyridyl)

“…grade) were used as supplied. RuC12(PPh3), (7) and Ppy, (8) were prepared according to published procedures.…”

Synthesis and Structural Characterization of a Highly Effective Chiral Dipyridylphosphine Ligand and Its Application in the Ru-Catalyzed Asymmetric Hydrogenation of β-Ketoesters

“…4 By preventing the coordination of the pyridyl groups via the use of bulky substituents, we found that the resulting rhodium(I) complex was effective for the hydrogenation of aldehydes, olefins, and imines. …”

“…4 By preventing the coordination of the pyridyl groups via the use of bulky substituents, we found that the resulting rhodium(I) complex was effective for the hydrogenation of aldehydes, olefins, and imines. Inspired by the success of the modified pyridylphosphine ligand, we have developed a chiral dipyridylphosphine ligand 2,2',6,6'-tetramethoxy-4,4'-bis(diphenylphosphino)-3,3'-bipyridine (P-Phos), 6 which was found to be very effective in the Ru catalyzed asymmetric hydrogenation of 2-(6'-methoxy-2'-naphthyl)propenoic acid to give the nonsteroidal anti-inflammatory drug naproxen.…”