Process for preparing phosphites and transition metal complexes

Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing

Reexamination Certificate

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C556S136000, C568S012000, C568S014000, C502S162000

Reexamination Certificate

active

06992201

ABSTRACT:
The present invention relates to a process for preparing phosphites and their transition metal complexes and also to their use in catalytic processes.

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patent: 2003/0171608 (2003-09-01), Reetz et al.
patent: 01/94278 (2001-12-01), None
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Patrick H. Dussault* and Kevin R. Woller; J. Org. Chem. (month unvailable) 1997, 62, pp. 1556-1559; “Approaches to Stereoselective Dioxygenation of Alkenes: Chiral Phosphite Ozonides” American Chemcal Society; Journal of Organic Chemistry, v62, p. 1556, Dussault Supple-mental pp. 1-14.
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Bedekar, A.V. et al: “Intramolecular asymmetric olefination of binaphythyl phosphonate derivatives of 1,3-diketones” Tetrahedron: Asymmetry, Elsevier Schience Publishers, Amsterdam, NL, Bd. 13, Nr. 7, May 2, 2002, Seiten 721-727, XP004354864 ISSN: 0957-4166 *das ganze Dokument*.
Chen W et al: “Enantioselective hydrogenation with inexpensive, easily available monodentate phosphite ligands” Tetrahedron Letters, Elsevier Science Publishers, Amsterdam, NL, Bd. 42, Nr. 15, Apr. 9, 2001, Seiten 2897-2899, XP004232343 ISSN: 0040-4039 *das ganze Dokument*.
Chen W et al: “Asymmetric activation of conformationally flexible monodentate phosphites for enantioselective hydrogenation” Tetrahedron Letters, Elsevier Science Publishers, Amsterdam, NL, Bd. 42, Nr. 49, Dec. 3, 2001, Seiten 8737-8740, XP004321537 ISSN: 0040-4039 *daz ganze Dokument*.

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