Enamines are organic compounds that contain a carbon-nitrogen double bond, specifically a C=N bond, where the nitrogen is attached to a carbon that is also part of a carbon chain or ring. They are typically formed by the reaction of aldehydes or ketones with secondary amines. Enamines serve as important intermediates in organic synthesis, allowing for various chemical transformations. These compounds are particularly useful in the formation of amines, alcohols, and carboxylic acids through reactions such as hydrolysis and alkylation. Enamines can also participate in Michael additions and other nucleophilic reactions, making them valuable in the development of pharmaceuticals and fine chemicals.