Chiral ligands for application in asymmetric syntheses

Details Chiral ligands for application in asymmetric syntheses Chiral ligands for application in asymmetric syntheses

2008-07-08

2008-07-08

Eyler, Yvonne (Department: 1621)

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

Organic compounds

Heavy metal containing

C558S072000

Reexamination Certificate

active

07396947

ABSTRACT:
The present invention relates to biarylbisphosphines and intermediates thereof. The scope of the invention further encompasses catalysts preparable from the biarylbisphosphines and their use in asymmetric syntheses.

REFERENCES:
patent: 5488172 (1996-01-01), Cereghetti et al.
patent: 5801261 (1998-09-01), Laue et al.
patent: 6162929 (2000-12-01), Foricher et al.
patent: 6288280 (2001-09-01), Kienzle et al.
patent: 6313317 (2001-11-01), Sayo et al.
patent: 6340107 (2002-01-01), Cappa et al.
patent: 6480513 (2002-11-01), Kapany et al.
patent: 6521769 (2003-02-01), Zhang
patent: 6545153 (2003-04-01), Butler et al.
patent: 6583312 (2003-06-01), Sirges et al.
patent: 6844462 (2005-01-01), Drieben-Hölscher et al.
patent: 2002/0128501 (2002-09-01), Zhang
patent: 3146187 (2000-01-01), None
Schmid, Rudolf, et al., “Axially Dissymmetric Bis(triaryl)phosphines in the Biphenyl Series, . . . ”,Helvetica Chimica Acta, vol. 71. (1988), pp. 897-929.
Noyori, Ryoji, et al., “BINAP: An Efficient Chrial Element for Asymmetric Catalysis”,Acc. Chem. Res. 1990, 23, pp. 345-350.
Zhang, Xiaoyong, et al., “Highly Enantioselective Hydrogenation of α,β-Unsaturated Carboxylic Acids Catalyzed by H8-BINAP-Ru(II) Complexes”,Synlett, Jul. 1994, pp. 501-503.
Zhang, Zhaoguo, et al., “Synthesis of Chiral Bisphosphines with Tunable Bite Angles and Their Applications in Asymmetric Hydrogenation of β-Ketoesters”,Journal of Organic Chemistry, 2000, 65, pp. 6233-6226.
Miyashita, Akira, et al., “Synthesis of Atropisomeric 2,2′-Bis(dicyclohexylphosphino)-6,6′-dimethyl-1, 1′-biphenyl (BICHEP) and Its Use in Rh(I)-catalyzed Asymmetric Hydrogenation of Prochiral Olefins”,Chemistry Letters, 1989, p. 1851.
Mashima, Kazushi, et al., “Chemoselective asymmetric hydrogenation of α,β-unsaturated carbonyl compounds to allylic alcohols catalysed by [lr(binap)(cod)]BF4-aminophosphine”,Journal of Organometallic Chemistry, 428 (1992) p. 213.
Ikariya, Takao, et al., “Synthesis of Novel Chiral Ruthenium Complexes of 2,2′-Bys(diphenylphosphino)-1,1′-binaphthyl and their Use as Asymmetric Catalysts”,J. Chem. Soc., Chem. Commun., 1985, p. 922.
Noyorit, Ryoji, et al., “Rapid, productive and stereoselective hydrogenation of ketones”,Pure Appl. Chem., vol. 71, No. 8, (1999) pp. 1493-1501.

Affiliated with

Also associated with

Rating

Chiral ligands for application in asymmetric syntheses does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Chiral ligands for application in asymmetric syntheses, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Chiral ligands for application in asymmetric syntheses will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2775505