Cationic transition metal catalysts

C - Chemistry – Metallurgy – 07 – F

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C07F 15/00 (2006.01) B01J 23/74 (2006.01) C07C 211/65 (2006.01) C07F 9/50 (2006.01) C07F 15/02 (2006.01)

Patent

CA 2703671

The present disclosure includes catiomc complexes of iron, ruthenium, and osmium, and their use as catalysts in organic synthesis transformations including the hydrogenation of unsaturated compounds. The complexes are represented by the following formulae I, II, III, IV, and V, wherein M is Fe, Ru or Os, P is a monodentate ligand with a phosphorus donor atom, P2 is a bidentate neutral ligand with two phosphorus donor atoms, N2 is a bidentate neutral ligand with two nitrogen donor atoms, PN is a bidentate neutral ligand with phosphorus and nitrogen donor atoms, PNNP is a tetradentate neutral ligand bonded to M via two phosphorus and two nitrogen atoms, X is any anionic ligand, LB is any neutral Lewis base, Y is any non-coordmatmg anion, n is 0, 1, or 2, m is 1 or 2, q is 0 or 1, r is 1 or2and q + r = 2.

La présente invention a trait à des complexes cationiques de fer, de ruthénium et d'osmium, ainsi qu'à leur utilisation en tant que catalyseurs dans des transformations relevant du domaine de la synthèse organique, dont l'hydrogénation de composés insaturés. Les complexes sont représentés par les formules I, II, III, IV et V suivantes, dans lesquelles M représente Fe, Ru ou Os, P est un ligand monodentate comportant un atome de phosphore donneur, P2 est un ligand bidentate neutre comportant deux atomes de phosphore donneurs, N2 est un ligand bidentate neutre comportant deux atomes d'azote donneurs, PN est un ligand bidentate neutre comportant des atomes de phosphore et d'azote donneurs, PNNP est un ligand tétradentate neutre lié à M par l'intermédiaire de deux atomes de phosphore et de deux atomes d'azote, X est un ligand anionique quelconque, LB représente une base de Lewis neutre quelconque, Y représente un anion non coordonné quelconque, n est égal à 0, 1 ou 2, m est égal à 1 ou 2, q est égal à 0 ou 1, r est égal à 1 ou 2 et q + r = 2.

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