3-Chloro-2-methylpyridine(CAS: 72093-03-9)

3-Chloro-2-methylpyridine is a crystalline solid with a molecular weight of 147.57 g/mol. It has low solubility in water but is more soluble in organic solvents like ethanol and acetone. The compound is moderately reactive, particularly with strong bases and nucleophiles. It can form complexes with metals and undergo electrophilic substitution reactions.

3-Chloro-2-methylpyridine is commonly synthesized through the chlorination of 2-methylpyridine in the presence of thionyl chloride. An alternative method involves the reaction of 2-methylpyridine with chlorine gas in the presence of a Lewis acid catalyst, such as aluminum chloride. These methods provide good yields, with high selectivity towards the chlorinated product.

3-Chloro-2-methylpyridine is used in the pharmaceutical industry as a precursor for the synthesis of certain drugs. It also finds applications in the polymer industry, where it serves as a monomer for the production of polymers. Additionally, it is utilized in the development of sensors and in the electronics industry for its use in semiconductor manufacturing.

When handling 3-Chloro-2-methylpyridine, it is essential to use personal protective equipment (PPE) such as gloves, goggles, and a lab coat. Work should be conducted in a well-ventilated area or a fume hood to minimize inhalation risks. Spills should be handled carefully, using appropriate absorbents, and the area should be ventilated. Always consult the Safety Data Sheet (SDS) for specific handling instructions and emergency procedures.