Substituted optically active disphosphine compound

Details Substituted optically active disphosphine compound Substituted optically active disphosphine compound

2007-12-25

2007-12-25

Eyler, Yvonne (Department: 1621)

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

Organic compounds

Heavy metal containing

Reexamination Certificate

active

11526252

ABSTRACT:
Provided is a method for producing an optically active compound, in more detail, for producing an optically active compound by asymmetric hydrogenation in a high yield and asymmetric yield. The present invention also provides a catalyst for asymmetric synthesis for the above production method, especially a catalyst for asymmetric hydrogenation, containing a transition metal complex. Further, the present invention provides a new diphosphine compound useful as a ligand of the above transition metal complex and a new transition metal complex containing the above diphosphine compound.The present invention relates to a diphosphine compound represented by the following formula (1):a transition metal complex using the compound, a catalyst for asymmetric synthesis comprising the above transition metal complex and a method for producing an optically active compound using the above catalyst for asymmetric synthesis.

REFERENCES:
patent: 10-182678 (1998-07-01), None
patent: WO-02/40491 (2002-05-01), None
patent: WO-02/40492 (2002-05-01), None
Leroux et al., Synthesis, 3:326-328 (2004).
Sun et al., Tetrahedron: Asymmetry, 15:2185-2188 (2004).

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