Organic compounds -- part of the class 532-570 series – Organic compounds – Amino nitrogen containing
Reexamination Certificate
2005-11-01
2010-02-23
O'Sullivan, Peter G (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Amino nitrogen containing
C502S155000, C568S630000, C568S812000, C568S814000
Reexamination Certificate
active
07667075
ABSTRACT:
A diamine of formula (I) is described, in which A is hydrogen or a saturated or unsaturated C1-C20 alkyl group or an aryl group; B is a substituted or unsubstituted C1-C20 alkyl, cycloalkyl, alkaryl, alkaryl or aryl group or an alkylamino group and at least one of X1, X2, Y1, Y2or Z is a C1-C10 alkyl, cycloalkyl, alkaryl, aralkyl or alkoxy substituting group. The chiral diamine may be used to prepare catalysts suitable for use in transfer hydrogenation reactions.
REFERENCES:
patent: 6300509 (2001-10-01), Crameri et al.
patent: 7045646 (2006-05-01), Tanis et al.
patent: 7169938 (2007-01-01), Eckert et al.
patent: 7232927 (2007-06-01), Bosch et al.
patent: 7250526 (2007-07-01), Blacker et al.
patent: 0916637 (1999-05-01), None
patent: 1258470 (2002-11-01), None
patent: 1439159 (2004-07-01), None
patent: 1512678 (2005-03-01), None
patent: 0076942 (2000-12-01), None
patent: 2004031155 (2004-04-01), None
Pikul et al., Chem. Abst.: 122:9562 (1995).
Corey, E. J., et al., “Convenient Routes to Symmetrical Benzils and Chiral 1,2-Diaryl-1,2-diaminoethanes, Useful Controllers and Probes for Enantioselective Synthesis,” Tetrahedron: Asymmetry, 1995, pp. 3-6, vol. 6, No. 1, Elsevier Science Ltd, Great Britain.
Li, Xiaoguang, et al., “Asymmetric transfer hydrogenation of ketones with a polymer-supported chiral diamine,” Tetrahedron Letters, 2004, pp. 951-953, vol. 45, Elsevier Ltd.
Li, Xiaoguang, et al., “Asymmetric Transfer Hydrogenation in Water with a Supported Noyori-Ikariya Catalyst,” Organic Letters, 2004, pp. 3321-3324, vol. 6, No. 19, American Chemical Society.
Ma, Yaping, et al., “Asymmetric Transfer Hydrogenation of Prochiral Ketones in Aqueous Media with New Water-Soluble Chiral Vicinal Diamine as Ligand,” Organic Letters, 2003, pp. 2103-2106, vol. 5, No. 12, American Chemical Society.
Xue, Dong, et al., “Transfer Hydrogenation of Activated C=C Bonds Catalyzed by Ruthenium Amido Complexes: Reaction Scope, Limitation, and Enantioselectivity,” J. Org. Chem., 2005, pp. 3584-3591, vol. 70, No. 9, American Chemical Society.
Foreign communication from a related counterpart application—International Search Report, PCT/GB2005/050190, Feb. 17, 2006, 4 pgs.
Foreign communication from a related counterpart application—International Preliminary Report on Patentability, PCT/GB2005/050190, May 22, 2007, 7 pgs.
Mohar, Barbara, et al., “Highly enantioselective synthesis via dymanic kinetic resolution under transfer hydrogenation using Ru(n6-arene)-N-perfluorosulfony1-1.2-diamine catalysts: a first insight into the relationship of the ligand's pKa and the catalyst activity,” Chem. Commun., 2001, pp. 2572-2573, The Royal Society of Chemistry.
Noyori, R., et al., “Asymmetric transfer hydrogenation catalyzed by chiral ruthenium complexes,” Acc. Chem. Res., 1997, vol. 30, No. 2, pp. 97-102.
Rhyoo Hae Yoon, et al., “Use of surfactants in water-soluble ruthenium(II) complex-catalyzed asymmetric hydrogen-transfer reduction of aromatic ketones,” Tetrahedron Letters, 2002, vol. 43, pp. 269-272, Pergamon, Elsevier Science Ltd.
Yamashita, Hiroshi, et al., “Practical synthesis of both enantiomers of vasopressin V2 receptor antagonist OPC-41061 using the catalytic asymmetric hydrogenation,” Heterocycles, 2002, vol. 56, pp. 123-128.
Dominguez Beatriz
Grasa Gabriela Alexandra
Medlock Jonathan Alan
Zanotti-Gerosa Antonio
Bial - Portela & CA, S.A.
Carroll Rodney B.
Conley & Rose, P.C.
O'Sullivan Peter G
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