- n. chemistry Any reaction or process in which hydrogen is removed from a substance, especially the production of unsaturated organic compounds from saturated ones
GNU Webster's 1913
- n. (Chem.) The act or process of freeing from hydrogen; also, the condition resulting from the removal of hydrogen.
“The simplest type of oxidation reaction is dehydrogenation, that is the removal of hydrogen from the molecule.”
“At that time, however, it was commonly believed that expressing the cDNA in living organisms would not produce fluorescent GFP, because the formation of its chromophore requires the reactions of condensation and dehydrogenation that are not expected to occur spontaneously.”
“The award to Wieland was primarily for his investigations of bile acids, whereas Windaus was recognized mainly for his work on cholesterol and his demonstration of the steroid nature of vitamin D. Wieland had already in 1912, before his prize-winning work, formulated a theory for biological oxidation, according to which removal of hydrogen (dehydrogenation) rather than reaction with oxygen is the dominating process.”
“Reforming represents the total effect of numerous reactions such as cracking, polymerization, dehydrogenation, and isomerization taking place simultaneously (Figure 9).”
“In addition to cracking, catalytic activities include dehydrogenation, hydrogenation, and isomerization.”
“Listed are several of these oxidizing reactions. alcohol dehydrogenation aldehyde dehydrogenation alkyl/acyclic hydroxylation aromatic hydroxylation deamination desulfuration”
“If this theory is correct, it can be deduced that nickel and the other active metals (copper, cobalt, iron, platinum) must be capable not only of fixing free hydrogen, but must also take hydrogen from such substances as are capable of giving it up, and that consequently they must be dehydrogenation catalysts.”
“At a temperature of between 250° and 300°C powdered copper very conveniently brings about dehydrogenation of primary alcohols into aldehydes and of secondary alcohols into acetones, and this is a very useful practical method of effecting this transformation.”
“Thus the concept of a temporary compound prompted me to use finely divided metals, first as hydrogenation catalysts and then as dehydrogenation catalysts.”
“He has also been concerned with work on the constitution of unsaturated compounds by quantitative ozonization, condensation of aldehydes and ketones, ketone splitting of tertiary alcohols, the cracking of hydrocarbons in presence of aluminium chloride and catalytic hydrogenation and dehydrogenation processes under reduced pressures.”
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