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Hydrogenation

Hydrogenation is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst such as nickel, palladium or platinum. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, often an…

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Overview

Process

Thermodynamics

Mechanism

Industrial applications

History

Specialized hydrogenation concepts

Equipment used for hydrogenation

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Hydrogenation

Nodes148
Edges147
Triples171
Avg. degree1.99
Density0.013514
Components1

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Hydrogenation

Top relations

related to Further reading · 33
Hydrogenation → Am, Archived, Bibcode, Brown, Can, Catalytic, Catalytic Reduction, Chem, Coll, Comprehensive Reviews, Convenient Preparation, Davies, December, Food Safety, Food Science, Halogenated Anilines, High Conjugated Fatty Acids, Hodgson, Hydrazine, Jang ES
related to Heterogeneous catalytic hydrogenation · 16
Hydrogenation → Adams, Britain, Chemistry, Döbereiner's, For, Germany, In, Murray Raney, Nobel Prize, Paul Sabatier, Sabatier, The, The French, The Parr, Voorhees, Wilhelm Normann
related to Homogeneous catalytic hydrogenation · 12
Hydrogenation → In, Ir, L-DOPA, Natta, Noyori, PPh3, Rh, RhCl, Soon, The, Wilkinson's, Ziegler
related to Metal-free hydrogenation · 11
Hydrogenation → Another, For, Illustrative, It, Lewis, Meerwein, One, Ponndorf, Some, The, Verley
related to Selected mechanistic details · 10
Hydrogenation → CHDR' An, CHR, D2, H2, Many, Ordinarily, RCH, RCHD, Semihydrogenation, Z-alkenes
related to Petrochemical industry · 6
Hydrogenation → For, Hydrocracking, In, More, On, Relevant
related to Side reactions · 6
Hydrogenation → Alkene, Often, Similarly, Since, Such, This
related to Thermodynamics · 6
Hydrogenation → First, For, Gibbs, However, In, The
related to Transfer hydrogenation · 6
Hydrogenation → Coal, H2, In, The, These, Transfer
related to Batch hydrogenation at elevated temperature and/or pressure · 5
Hydrogenation → Heat, Hydrogen, In, Recent, Since

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Important terminology

catalyst catalysts hydrogen homogeneous organic heterogeneous used nickel using reaction h2 pressure reduction process alkenes metal substrates catalytic also unsaturated

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Hydrogenationis achemical reaction between molecular hydrogen0.90text
nickelinstance ofusually in the presence of a catalyst0.80text
palladium or platinuminstance ofusually in the presence of a catalyst0.80text
platinum black are still usedinstance ofprecious metal catalysts0.80text
despite the cost.Homogeneous catalystsSome well known homogeneous catalysts are indicated belowinstance ofprecious metal catalysts0.80text
despite the costinstance ofprecious metal catalysts0.80text
conversion of nitriles to amines or the production of margarine.Homogeneous catalytic hydrogenationThe 1960s witnessed the development of well defined homogeneous catalysts using transition metal complexesinstance ofwhich is widely used to catalyze hydrogenation reactions0.80text
e.g.instance ofwhich is widely used to catalyze hydrogenation reactions0.80text
Wilkinson's catalystinstance ofwhich is widely used to catalyze hydrogenation reactions0.80text
conversion of nitriles to amines or the production of margarineinstance ofwhich is widely used to catalyze hydrogenation reactions0.80text
isopropanol.Coal liquifaction can be achieved by heating coal under hydrogen pressureinstance ofand alcohols0.80text
tetrahydronaphthaleneinstance ofThe process is enhanced in the presence of organic hydrogen donors0.80text

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