Question

What is catalytic dehydrogenation of alcohol?

Answer 1

We know that dehydrogenation is a process that leads to the removal of hydrogen. This process is meant for only the removal of one or more hydrogens. This is an elimination reaction and for dehydrogenation of a primary alcohol, it involves elimination.

Complete answer: As we know that it's a type of endothermic reaction and it requires appropriate heat input for further reaction. Catalytic dehydrogenation reactions can be done by using different catalysts such as silver metal catalysts in presence of oxygen which convert primary alcohol into an aldehyde. This same reaction can be done in absence of oxygen by using a palladium or platinum catalyst. These reactions are followed to form fine chemicals and good product yield. In this type of reaction pressure increases and decreases during the conversion. Carbocation: An ion in which the carbon carries a positive charge is called carbocation and they are formed by the heterolytic cleavage. Stability of the carbocation: The stability of the allylic carbocation depends on the inductive effect of the alkyl group attached to the carbocation. The stability of the carbocation increases with an increase in the number of alkyl groups.
The chemical reaction that involves extracting hydrogen which is typically from an organic molecule, is dehydrogenation. It's the opposite of hydrogenation. Enzymes are called dehydrogenases that catalyze dehydrogenation. Main alcohols give aldehydes upon catalytic dehydrogenation, secondary alcohols give ketone along with tertiary alcohols give alkene. Primary as well as secondary alcohols display beta-elimination in which alpha and beta carbon hydrogen are in the alcoholic group.

Note:
Remember that the dehydration of alcohols is a way to synthesize alkenes is by dehydration of alcohols, a process during which alcohols undergo mechanisms to lose water and form a covalent bond. The dehydration reaction of alcohols to get alkene proceeds by heating the alcohols within the presence of a robust acid, like sulfuric or ortho phosphoric acid, at high temperatures.