Enals are a class of chemical compounds known as enamines, which are formed by the reaction of aldehydes or ketones with secondary amines. They contain a carbon-nitrogen double bond and are often used in organic synthesis due to their ability to undergo various chemical reactions. Enals can serve as intermediates in the production of more complex molecules. These compounds are important in the field of medicinal chemistry and pharmaceuticals, as they can be transformed into a variety of useful products. Their unique structure allows for diverse applications, including the development of new drugs and materials.