Isophthalonitrile

Isophthalonitrile is an organic compound with the chemical formula C6H4(CN)2. It is a colorless crystalline solid at room temperature. It is one of three structural isomers of dicyanobenzene, the others being phthalonitrile and terephthalonitrile. The nitrile groups in isophthalonitrile are attached to the benzene ring at positions 1 and 3.

Isophthalonitrile is typically produced through the ammoxidation of m-xylene. This process involves reacting m-xylene with ammonia and oxygen in the presence of a catalyst. The reaction conditions are carefully controlled to favor the formation of isophthalonitrile.

This compound serves as a precursor for a variety of other chemicals. It is an important intermediate in the synthesis of certain dyes, pigments, and polymers. For instance, it can be hydrolyzed to isophthalic acid, which is used in the production of polyester resins. It also finds application in the development of pesticides and pharmaceuticals. Its thermal stability and chemical properties make it suitable for specific industrial processes.