METHOD OF HYDROGENATING α, β-UNSATURATED KETONES Russian patent published in 2014 - IPC C07C29/17 

FIELD: chemistry.

SUBSTANCE: invention relates to an improved method of hydrogenating α,β-unsaturated ketones of general formula , where R₁,R₂=H or R₁-R₂=-(CH₂)₃-, with hydrogen. The method includes hydrogenating benzal alkanone with hydrogen gas at atmospheric pressure in a solvent medium in the presence of a catalyst. The benzal alkanone used is benzalacetone or benzalcyclohexanone, and the catalyst used is colloidal nickel particles obtained by reducing nickel (II) chloride with sodium borohydride, and the process is carried out in an isopropanol medium at 60-65°C.

EFFECT: method enables to achieve high output of saturated secondary alcohols from starting α,β-unsaturated ketones using readily available reactants.

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