Pyrrolidine (azolidine, tetrahydropyrrol, tetramethylenimine) is a transparent colorless liquid, with a characteristic unpleasant ammonia odor. Smoke" in the air. It is water-soluble and easily dissolves in many organic solvents - in ethyl and methyl alcohols, diethyl ether, acetone, benzene, chloroform. It does not dissolve in tetrachloromethane.
Application - the initial product in the pharmaceutical industry for the synthesis of nootropic drugs (improving memory and learning), such as piracetam, as well as lyncomycin and clindomycin antibiotics. For derivatives that are in demand in the chemical, pharmaceutical and other industries. The most important derivatives are pyrrolidin-proline, 2-pyrrolidone, 1-vinyl-2-pyrrolidone, succinimide. In laboratory practice it is used for production of denamines (vinylamines) - organic compounds with double bond, amine derivatives. Genamines are further used as intermediate substances for synthesis of ketone derivatives.