dehydration reaction

A dehydration reaction, also known as a condensation reaction in organic chemistry, is a process where two molecules combine, typically with the removal of a water molecule. This reaction is fundamental in organic synthesis, allowing for the formation of larger molecules from smaller ones.12

Common organic compounds like aldehydes, ketones, and esters can participate in dehydration reactions, either with themselves or with other molecules. A notable example is the dehydration of alcohols, where a hydroxyl group and a hydrogen atom are removed to form an alkene and water. This process often requires a strong acid catalyst, such as sulfuric acid. The stability of the intermediate carbocation influences the reaction rate and potential for rearrangements.13