Chiral phosphanes for use in asymmetric syntheses

Details Chiral phosphanes for use in asymmetric syntheses Chiral phosphanes for use in asymmetric syntheses

2004-09-14

2009-12-01

Marcheschi, Michael A (Department: 1793)

Compositions: coating or plastic

Materials or ingredients

Pigment, filler, or aggregate compositions, e.g., stone,...

C502S150000, C502S154000, C502S155000, C502S162000, C502S208000

Reexamination Certificate

active

07625443

ABSTRACT:
The present invention relates to biarylbisphosphines and intermediates thereof. Furthermore, the scope of the invention encompasses catalysts which can be prepared from the bisarylphosphines and their use in asymmetric syntheses.

REFERENCES:
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patent: 01/21625 (2001-03-01), None
patent: WO 0121625 (2001-03-01), None
patent: 2004/031110 (2004-04-01), None
Grushin; “Synthesis of Hemilabile Phosphine-Phosphine Oxide Ligands via the Highly selective Pd-Catalyzed Mono-Oxidation of Bidentate Phosphines: Scope, Limitations, and Mechanism”; Organometallics; 2001; 20; 3950-3961.
Pure & Applied Chemistry, Pergamon Press, Oxford, GB, Bd. 68, Nr. 1, 1996, Seiten 131-138, Schmid R. et al, “New Developments in Enantioselective hydrogenation” XP000884387, ISSN: 0033-4545, das ganze Dokument.
Synlett, Letters, Jul. 1994, pp. 501-503, X. Zhang et al, “Highly Enantioselective Hydrogenation of α,β-Unsaturated Carboxylic Acids Catalyzed by H8-BINAP-Ru(II) Complexes”.
Acc. Chem. Res., 1990, 23, pp. 345-350, R. Noyori et al, “BINAP: An Efficient Chiral Element for Asymmetric Catalysis”.
Helvetica Chimica Acta, vol. 71, 1988, pp. 897-929, R. Schmid et al, “102. Axially Dissymmetric Bis(triaryl)phosphines in the Biphenyl Series: Synthesis of (6,6′-Dimethylbiphenyl-2,2′-diyl)bis(diphenylphosphine) (‘BIPHEMP’) and Analogues, and their Use in Rh(I)-Catalyzed Asymmetric Isomerizations ofN,N-Diethylnerylamine”.
Angew. Chem., 113, 2001, pp. 40-75, R. Noyori et al, “Asymmetrische Katalyse mit hinsichtlich Struktur und Funktion gezielt entworfenen Molekülen: die chemo- und stereoselektive Hydrierung von Ketonen”.

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