Topics in Catalysis

, Volume 5, Issue 1, pp 51-62

First online:

Selective hydrogenation of ά,β-unsaturated aldehydes and other C=O and C=C bonds containing compounds

  • Peter ClausAffiliated withDepartment Catalysis, Institute for Applied Chemistry

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Advances in developing new heterogeneous catalysts which hydrogenate preferentially the C=O group of ά,β-unsaturated aldehydes to obtain the desired products, namely unsaturated alcohols, will be reviewed by considering the parameters which control the intramolecular selectivity: support material, nature and particle size of the individual metals, selective poisoning, presence of a second metal, preparation method or catalyst precursor, temperature of reduction, host-guest interactions in zeolites, substituents on the C=C bond and pressure effects. Recent attempts with bimetallic and silver catalysts to hydrogenate only the C=O group of other polyfunctional organic compounds in the gas phase without simultaneous hydrogenation of aromatic or furan rings will be shown.

ά,βunsaturated aldehydes acetophenone furfural selective hydrogenation intramolecular selectivity bimetallic catalyst silver catalyst unsaturated alcohols C=O group pressure effect