Tetrachloroterephthalonitrile, scientifically known as 2,3,5,6-tetrachlorobenzene-1,4-dicarbonitrile and identified by CAS 1897-41-2, is a compound characterized by its unique molecular structure and versatile chemical reactivity. Understanding its properties and synthesis is crucial for appreciating its role as a key intermediate in various chemical industries.

The molecule features a benzene ring substituted with four chlorine atoms and two nitrile (cyano) groups at opposite positions (para). This specific arrangement imparts distinct characteristics: the electron-withdrawing nature of the chlorine atoms and nitrile groups influences the reactivity of the aromatic ring and the cyano functionalities. Typically appearing as a white to light yellow crystalline powder, it exhibits a high melting point, often in the range of 250-253°C, indicating a stable solid state under normal conditions.

Chemically, Tetrachloroterephthalonitrile is generally insoluble in water but soluble in various organic solvents, a common trait for chlorinated aromatic compounds. The nitrile groups (-CN) are susceptible to hydrolysis, reduction, and addition reactions, making them valuable functional groups for further chemical transformations. The chlorine atoms on the ring can also participate in nucleophilic aromatic substitution reactions under specific conditions, although they are generally quite stable due to the electron-withdrawing groups.

While the precise industrial synthesis routes can vary and are often proprietary, the preparation of Tetrachloroterephthalonitrile typically involves chlorination and cyanation steps starting from simpler aromatic precursors. For instance, it might be synthesized through the chlorination of terephthalonitrile or related compounds, followed by or preceded by the introduction of nitrile groups. The efficiency and selectivity of these reactions are critical for achieving high purity, which is essential for its use as an intermediate.

NINGBO INNO PHARMCHEM CO.,LTD. is dedicated to producing Tetrachloroterephthalonitrile with optimal purity and consistency. Our manufacturing processes are designed to ensure the reliable supply of this vital intermediate. For businesses engaged in agrochemical development, dye manufacturing, or specialty chemical synthesis, understanding the chemical properties and synthesis pathways of CAS 1897-41-2 allows for its effective utilization in creating advanced products. We are committed to providing clear technical information and high-quality products to our partners.