Process for hydrogenation of carbonyl and iminocarbonyl...

Details Process for hydrogenation of carbonyl and iminocarbonyl... Process for hydrogenation of carbonyl and iminocarbonyl...

2005-04-12

2005-04-12

Davis, Brian (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Oxygen containing

C568S814000, C568S850000, C568S861000, C568S862000, C568S863000, C568S864000, C568S874000, C568S878000, C568S885000

Reexamination Certificate

active

06878852

ABSTRACT:
A process for the hydrogenation, using molecular hydrogen (H2) of a catalytic system, wherein the catalytic system includes a base and a complex of formula (II):in-line-formulae description="In-line Formulae" end="lead"?Ru(P2N2)Y2  (II)in-line-formulae description="In-line Formulae" end="tail"?wherein Y represent simultaneously or independently a hydrogen or halogen atom, a hydroxy group, or an alkoxy, carboxyl or other anionic radical, and P2N2is a tetradentate diimino-diphosphine ligand.

REFERENCES:
patent: 1 120 162 (1997-12-01), None
Wong et al., Polyhedron (1996), 15(21), p. 3905-3907.*
Wong et al., Polyhedron (1997), 16(3), p. 433-439.*
Abstract—XP002175802, Jingxing et al., “Preparation of chiral diaminodiphosphine metal complexes as catalysts in asymmetrically catalytic hydrogenation”, STN 2000.
Abstract—XP002175800, Wai-Kwok et al., Synthesis and characterizations of chiral diimino-and diaminodiphosphine complexes of ruthenium x-ray crystal structure of trans-RuC12(1R, 2R-cyclohexyl-P2N2.cntdot, STN 1996.
Abstract—XP002175801, Pinapian et al. Synthesis and hydrogenation activity of diiminodiphosphine ruthenium complex RuC12P2N2, STN 1997.
Abstract—XP002175803, Jingxing et al., Synthesis and hydrogenation properties of polydentate diiminodiphosphine ruthenium (I) complexes retrieved from STN 1995.
Abstract—XP002175805 Jingxing et al., new chiral catalysts for reduction of ketones retrieved from STN 2000.
Abstract—XP002175804 Jingxing et al., Asymmetric transfer hydrogenation of prochiral ketones catalyzed by chiral ruthenium complexes with aminophosphine ligands retrieved from STN 1999.
Abstract—XP002175799 Jingxing et al., Homogeneous catalysis hydrogenation of functional zed olefins by diaminodiphosphineruthenium (II) 1995.
Abstract—XP001021059, Noyori et al. Chapter 6.1 Hydrogenation of Carbonyl Groups, vol. 1 pp. 199-246 (1999).

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