5-Chloro-4-nitro-2-thiophenesulfonyl chloride(CAS: 58457-24-2)

5-Chloro-4-nitro-2-thiophenesulfonyl chloride is a crystalline solid with a molecular weight of approximately 288.05 g/mol. It is soluble in common organic solvents like DMSO and slightly soluble in water. This compound is highly reactive due to the presence of chlorine and nitro groups, making it susceptible to various chemical transformations.

5-Chloro-4-nitro-2-thiophenesulfonyl chloride is usually synthesized via the chlorination of 5-nitro-4-thiophenesulfonic acid. The reaction involves the use of thionyl chloride under anhydrous conditions, followed by further nitration to introduce the chlorine group. The process requires careful control of reaction conditions to achieve high yield and selectivity.

5-Chloro-4-nitro-2-thiophenesulfonyl chloride finds applications in the pharmaceutical industry for the synthesis of drugs and intermediates. It is also used in the polymer industry for the modification of polymers and in the sensor industry for the development of sensitive detection devices. Additionally, it is utilized in semiconductor manufacturing for specific chemical treatments.

When handling 5-Chloro-4-nitro-2-thiophenesulfonyl chloride, it is essential to use appropriate personal protective equipment (PPE) such as gloves, goggles, and a lab coat. The compound should be handled in a fume hood to minimize exposure to fumes. In case of a spill, it should be carefully cleaned up using appropriate absorbent materials, and the area should be well-ventilated. Always consult the Safety Data Sheet (SDS) for detailed handling instructions and emergency procedures.