Heteroaromatic diphosphines as chiral ligands

Details Heteroaromatic diphosphines as chiral ligands Heteroaromatic diphosphines as chiral ligands

1999-04-27

2000-06-20

Richter, Johann

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548111, 548119, 549 3, 549 6, 549 7, 502162, 502165, 502166, 502223, 502221, C07F 96539, C07F 96553, B01J 3124

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active

060779586

ABSTRACT:
Chiral diphosphines are constituted by an aromatic pentatomic biheterocyclic system, suitable to act as chiral ligands and complexes between the diphosphines and transition metals. They may be utilized as chiral catalysts in stereocontrolled reactions, such as diastereo- and enantioselective reduction reactions. Process is for the preparation of these chiral diphosphines; and process is for the preparation of these complexes and for their utilization as chiral catalysts in stereocontrolled reactions.

REFERENCES:
patent: 3966595 (1976-06-01), Gosser
patent: 4755611 (1988-07-01), Hill
patent: 5508438 (1996-04-01), Broger
Benincori J. Chem Soc., Chem Comm, Diphenylphosphino-biheteroaryls issue 6, pp. 686-686, Mar. 1994.
Benincori J. Org Chem "New Class of Chiral Diphosphine Ligands for Highly Efficient Transition Metal-catalyzed Stereoselective Reactions", 61 pp. 6244-6251, 1996.
Chemical Abstracts, vol. 089, No. 5, Jul. 31, 1978, Columbus, Ohio.

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