Chemical reaction involving the removal of hydrogen
Compare Deprotonation.
In chemistry, dehydrogenation is a chemical reaction that involves the removal of hydrogen, usually from an organic molecule. It is the reverse of hydrogenation. Dehydrogenation is important, both as a useful reaction and a serious problem. At its simplest, it's a useful way of converting alkanes, which are relatively inert and thus low-valued, to olefins, which are reactive and thus more valuable. Alkenes are precursors to aldehydes (R−CH=O), alcohols (R−OH), polymers, and aromatics.[1] As a problematic reaction, the fouling and inactivation of many catalysts arises via coking, which is the dehydrogenative polymerization of organic substrates.[2]
Enzymes that catalyze dehydrogenation are called dehydrogenases.
^Wittcoff, Harold A.; Reuben, Bryan G.; Plotkin, Jeffrey S. (2004). Industrial Organic Chemicals, Second Edition - Wittcoff - Wiley Online Library. doi:10.1002/0471651540. ISBN 9780471651543.
^Guisnet, M.; Magnoux, P. (2001). "Organic chemistry of coke formation". Applied Catalysis A: General. 212 (1–2): 83–96. doi:10.1016/S0926-860X(00)00845-0.
In chemistry, dehydrogenation is a chemical reaction that involves the removal of hydrogen, usually from an organic molecule. It is the reverse of hydrogenation...
single nonaromatic precursor. Typically aromatization is achieved by dehydrogenation of existing cyclic compounds, illustrated by the conversion of cyclohexane...
complex catalyze the dehydrogenation of cyclooctane with a turnover frequency of 12 min−1 at 200 °C. They found that the dehydrogenation was performed at...
substitution, addition, polymerization. At higher temperatures they undergo dehydrogenation, oxidation and combustion. Of the classes of hydrocarbons, aromatic...
Acetylene (systematic name: ethyne) is the chemical compound with the formula C2H2 and structure H−C≡C−H. It is a hydrocarbon and the simplest alkyne....
were developed throughout the twentieth century. Of these, propane dehydrogenation technologies such as the CATOFIN and OLEFLEX processes have become...
take up hydrogen during hydrogenation. The sequence of endothermal dehydrogenation followed by hydrogen purification is considered as the main drawback...
produce carveol, carvone, and limonene oxide. With sulfur, it undergoes dehydrogenation to p-cymene. Limonene occurs commonly as the (R)-enantiomer, but racemizes...
cycloalkanes can be prepared by the dehydrogenation of other cyclic compounds. For instance, cyclohexane can undergo dehydrogenation to form benzene in the presence...
can be achieved using oxidizing agents such as chromic acid, or by dehydrogenation of isopropyl alcohol over a heated copper catalyst: (CH3)2CHOH → (CH3)2CO...
ethylbenzene, is fed to a dehydrogenation reactor with a catalyst capable of simultaneously producing styrene and ethylene. The dehydrogenation effluent is cooled...
stripped by distillation. Butadiene can also be produced by the catalytic dehydrogenation of normal butane (n-butane). The first such post-war commercial plant...
ISBN 978-0-07-288495-1. Razmi, Amir (May 2019). "Propylene Production by Propane Dehydrogenation (PDH)". Engineering: 3. Zivenko, Oleksiy (2019). "LPG Accounting Specificity...
Marum observed the transformative action of metal surfaces on the dehydrogenation of alcohol, a development which subsequently led, in 1831, to the industrial...
production from steam reforming and propylene production via propane dehydrogenation at technology readiness level 7. In addition, the consortium aims to...
Oxidation of ethene using silicotungstic acid catalyst. Base-catalyzed dehydrogenation of alcohols. Carbonylation coupled to the addition of water. This method...
commercial use. Traditionally, acetaldehyde was produced by the partial dehydrogenation of ethanol: CH 3 CH 2 OH ⟶ CH 3 CHO + H 2 {\displaystyle {\ce {CH3CH2OH...
hydrocarbon ethylbenzene – made from benzene and ethylene styrene – made by dehydrogenation of ethylbenzene; used as a monomer polystyrenes – polymers with styrene...
substrate. If the acyl CoA contains a cis-Δ4 double bond, then its dehydrogenation yields a 2,4-dienoyl intermediate, which is not a substrate for enoyl...
olefins(alkenes) or other chemical synthesis. Ethane by oxidative dehydrogenation converts to ethylene, which can be further converted to ethylene oxide...
Glutaric acidemia type 2 is an autosomal recessive metabolic disorder that is characterised by defects in the ability of the body to use proteins and fats...
about 90% and the drug undergoes extensive hepatic metabolization (dehydrogenation, hydroxylation, and N-dealkylation), principally by the enzymes CYP2D6...
partially dehydrogenated to produce high-octane aromatic hydrocarbons. The dehydrogenation also produces significant amounts of byproduct hydrogen gas, which...
230–270 °C. Dehydrogenation of methanol to formaldehyde is conducted at 600–720 °C over silver gauze or crystals as the catalyst, as is dehydrogenation of isopropanol...
removed sequentially from the carboxyl end of the acid after steps of dehydrogenation, hydration, and oxidation to form a beta-keto acid, which is split...
"Mycobacterium tuberculosis utilizes a unique heterotetrameric structure for dehydrogenation of the cholesterol side chain". Biochemistry. 52 (17): 2895–2904. doi:10...
from the C4 fraction of steam cracking; styrene monomer is made by dehydrogenation of ethylbenzene, a hydrocarbon obtained in the reaction of ethylene...
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