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Enantioselective hydrogenation of exocyclic α,β-unsaturated ketones: Part III. Hydrogenation with Pd in the presence of cinchonidine

✍ Scribed by Gabriella Fogassy; Antal Tungler; Albert Lévai

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
132 KB
Volume
192
Category
Article
ISSN
1381-1169

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Enantioselective hydrogenation of exocyc
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In the asymmetric synthesis of chiral compounds, the reduction of prochiral unsaturated reactants has a great importance. (S)-proline as a chiral auxiliary is used in the hydrogenations of exocyclic ␣,␤-unsaturated ketones with palladium on carbon catalysts, producing the corresponding saturated ke

Selective hydrogenation of exocyclic α,β
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Exocyclic a ,b-unsaturated ketones were hydrogenated to the corresponding saturated ketones with Pd catalysts. The effect of solvents, basic and poisoning additives and various supports on conversion and selectivity was investigated. The conditions, under which the reaction afforded the saturated ke