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In hydrogenations, hydrogen usually is catalytically introduced into organic compounds. The redox potential of hydrogen acceptors has to be more positive than that of hydrogen donors. Therefore, hydrogenations are considered to be reductions.
Recommended Learning Units
Hydrogenation of Alkenes
30 min.
ChemistryOrganic ChemistryAlkenes
Short introduction to the hydrogenation of alkenes.
Precious Metal Catalysts for Homogeneous Catalysis
30 min.
ChemistryInorganic ChemistryChemistry of the Elements
Read about a selection of outstanding examples of homogeneously catalyzed processes with precious metals that are used for large scale applications in industry.
Cis/Trans Hydrogenation of Alkynes10 min.
ChemistryOrganic ChemistryAlkynes
The learning unit describes different methods of synthesis of cis and trans alkenes by hydrogenation of alkynes.
Hydrogenation of Alkynes with the Lindlar catalyst20 min.
ChemistryOrganic ChemistryReduction Reactions
This learning unit describes the hydrogenation of alkynes using the Lindlar catalyst. The catalyst itself and the stereochemistry of this reaction are explained.
Comparison of Various Hydrogenation Methods20 min.
ChemistryOrganic ChemistryReduction Reactions
This learning unit summarizes various hydrogenation methods and reducing agents in tables.
Hydrogenation of Aromatic Compounds20 min.
ChemistryOrganic ChemistryReduction Reactions
This learning unit describes the catalytic hydrogenation of aromatic compounds. The mechanism, stereochemistry, selectivity and industrial applications are explained using various examples.
Hydrogenation with Diimide20 min.
ChemistryOrganic ChemistryReduction Reactions
This learning unit describes the hydrogenation using the hydrogen donor diimide. The mechanism and practical setup of this reduction are explained.
Hydrogenation of Alkenes with Metal Catalysts20 min.
ChemistryOrganic ChemistryReduction Reactions
This learning unit describes the hydrogenation of alkenes with metal catalysts. The mechanism, stereochemistry and chemoselectivity are explained using animations.