Ruthenium complex and process for producing tert-alkyl...

Details Ruthenium complex and process for producing tert-alkyl... Ruthenium complex and process for producing tert-alkyl...

2008-05-27

2008-05-27

Nazario-Gonzalez, Porfirio (Department: 1621)

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

Organic compounds

Oxygen containing

C546S002000, C546S012000, C556S013000, C556S018000

Reexamination Certificate

active

07378560

ABSTRACT:
A tert-alkyl ketone, pinacolone was hydrogenated under pressurized hydrogen in the presence of a ruthenium complex (S)-1 and a base, and corresponding (S)-3,3,-dimethyl-2-butanol was thereby obtained in 100% yield and 97% ee

REFERENCES:
patent: A-11-189600 (1999-07-01), None
patent: WO 2005/105819 (2005-11-01), None
Christelle Moreau et al.; “Catalytic Asymmetric Hydrosilylation of Ketones Using Mixed-Ligand Ruthenium Complexes;”Tetrahedron Letters; vol. 40; pp. 5617-5620; 1999.

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