Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2007-03-13
2007-03-13
Witherspoon, Sikarl A. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C558S332000, C560S241000
Reexamination Certificate
active
11211918
ABSTRACT:
This invention relates to asymmetric hydroformylation processes in which a prochiral or chiral olefin is reacted with carbon monoxide and hydrogen in the presence of an optically active metal-ligand complex catalyst to produce an optically active aldehyde or a product derived from an optically active aldehyde.
REFERENCES:
patent: 5491266 (1996-02-01), Babin et al.
patent: 5530150 (1996-06-01), Takaya et al.
patent: 2003/0040629 (2003-02-01), Zhang
patent: 2003/0055254 (2003-03-01), Landis et al.
patent: 2003/0144137 (2003-07-01), Zhang et al.
patent: 2003/0171608 (2003-09-01), Reetz et al.
patent: 2004/0072680 (2004-04-01), Zhang
patent: 2004/0199023 (2004-10-01), Whiteker et al.
patent: 2004/0229846 (2004-11-01), Zhang et al.
patent: WO 03/010174 (2003-02-01), None
patent: WO 03/042135 (2003-05-01), None
Breeden, et al., “Rhodium-Mediated Asymmetric Hydroformylation with a Novel Bis(diazaphospholidine) Ligand”,Angew. Chem. Int. Ed., vol. 39, No. 2, 2000, pp. 4106-4108
Clark et al., “Resolve Chiral 3,4-Diazaphospholanes and Their Application to Catalytic Asymmetric Allylic Alkylation”,J. Amer. Chem. Soc., vol. 125, 2003, pp. 11792-11793.
Clark et al., “A 1,2,4-diazaphospolane complex of rhodium,”Acta Crystallographica Section C, vol. C59, 2003, m144-m145.
Cobley, et al., “Synthesis and Application of a New Bisphosphite Ligand Collection for Asymmetric Hydroformylation of Allyl Cyanide”,J. Org. Chem., vol. 69, 2004, pp. 4031-4040.
Kwok et al., “Characterization and Application of Catalytic Regioselective Hydroformylation with a Cationic Bis(dioxaphospholane)rhodium Catalyst Precursor,”Organometallics, vol. 12, 1993, pp. 1954-1959.
Lambers-Verstappen, et al., “Rodium-Catalysed Asymmetric Hydroformylation of Unsaturated Nitriles”,Adv. Synth. Catal., 2003, vol. 345, No. 4, pp. 478-482.
Landis, et al., “Rapid Access to Diverse Arrays of Chiral 3,4-Diazaphospholanes”,Angew. Chem. Int. Ed., vol. 40, No. 18, 2001, pp. 3432-3434.
Landis, et al., “Solid-phase synthesis of chiral 3,4-diazaphospholanes and their application to catalytic asymmetrix allylic alkylation”, Proceedings of the National Acadmy of Sciences of the United States, vol. 101, 2004, pp. 5428-5432.
Nozaki et al., “Highly Enantioselective Hydroformylation of Olefins Catalyzed by Rhodium(I) Complexes of New Chiral Phosphine-Phosphite Ligands,”J. Am. Chem. Soc., vol. 119, 1997, pp. 4413-4423.
Sakai et al., “Highly Enantioselective Hydroformylation of Olefins Catalyzed by New Phosphinephosphite-Rh(I) Complexes”,J. Am. Chem. Soc., vol. 115, 1993, pp. 7033-7034.
Stille et al., “Platinum-Catalyzed Asymmetric Hydroformylation of Olefins with (-)-BPPM/SnCl2-Based Catalyst Systems”,Organometallics, vol. 10, 1991, pp. 1183-1189.
Cobley, et al., “Parallel Ligand Screening on Olefin Mixtures in Asymmetric Hydroformylation Reactions,”Org. Lett., vol. 6, No. 19, pp. 3277-3280 (2004).
van Leeuwen, P.W.N.M. and Claver, C.,Rhodium Catalyzed Hydroformylation, Kluwer Academic Publishers, Dordrecht, 2000.
Clark et al., “Highly Active, Regioselective, and Enantioselective Hydroformylation with Rh Catalysts Ligated by Bis-3,4-diazaphospholanes,”J. Am. Chem. Soc., vol. 127, pp. 5040-5042 (2005).
Clark Thomas P.
Klosin Jerzy
Landis Clark
LandOfFree
Diazaphospholane ligands for asymmetric catalysis does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Diazaphospholane ligands for asymmetric catalysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Diazaphospholane ligands for asymmetric catalysis will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3790522