Method for the production of optically active carbonyl
AssigneeBASF SE
InventorsChristoph Jäkel, Rocco Paciello
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Abstract
The present invention relates to a process for preparing optically active carbonyl compounds by asymmetrically hydrogenating α,β-unsaturated carbonyl compounds in the presence of optically active transition metal catalysts which are soluble in the reaction mixture and have at least one carbon monoxide ligand. The present invention especially relates to a process for preparing optically active aldehydes or ketones, in particular citronellal, by asymmetrically hydrogenating the corresponding optically active α,β-unsaturated aldehydes or ketones.
Claims20
A process for preparing optically active carbonyl compounds which comprises asymmetrically hydrogenating α,β-unsaturated carbonyl compounds in the presence of optically active transition metal catalysts which are soluble in the reaction mixture and have at least one carbon monoxide ligand, and pretreating the catalyst with a gas mixture comprising carbon monoxide and hydrogen and/or carrying out the asymmetric hydrogenation in the presence of carbon monoxide supplied additionally to the reaction mixture.
Dependencies are inferred from the claim text.