What Is Benzylamine?
Benzylamine, also known as phenylmethylamine, is an aromatic amine with the structure of C6H5CH2NH2. It is a colorless to pale yellow liquid, highly volatile, and has a strong odor similar to ammonia. Benzylamine is extremely soluble in water, ethanol, and acetone. Its molecular weight is 107.15, and it has a melting point of 10℃ and a boiling point of 185℃. The CAS registration number for benzylamine is 100-46-9.
Uses of Benzylamine
Benzylamine is used in the production of pharmaceuticals, dyes, surfactants, benzyl alcohol, benzyl cyanide, agrochemicals, plastics, fragrances, rubber, and as a starting material in various organic syntheses.
Properties of Benzylamine
It is a clear, colorless liquid with a boiling point of 185-187°C, a melting point of -51°C, a specific gravity of 1.04, and a vapor pressure of 0.15 kPa at 20°C. Benzylamine reacts with alkalis, and acids, and can form compounds like hydrochlorides and sulfates.
Structure of Benzylamine
Benzylamine consists of a phenyl group (C6H5) bonded to an amino group (-NH2) through a methylene (CH2) bridge. It is classified as a primary amine, making it a versatile functional group in chemical reactions.
Other Information on Benzylamine
1. Synthesis of Benzylamine
Benzylamine can be synthesized by reducing benzyl chloride with alkali or alkaline earth metals in the presence of ammonia or amine. This process involves the preparation of benzyl chloride from benzyl alcohol and hydrochloric acid, followed by a reduction reaction with an alkali metal like sodium or an alkaline earth metal. The reaction typically occurs at about 80-100°C, producing benzylamine, which is then extracted using solvents like ether or dichloromethane.