5-Chloro-2-methylpyridine(CAS: 72093-07-3)

5-Chloro-2-methylpyridine is a crystalline solid with a molecular weight of approximately 136.57 g/mol. It has a solubility of about 1.3 g/L in water and is soluble in organic solvents like ethanol and acetone. Chemically, it is moderately reactive, displaying basic properties and can undergo substitution reactions. It is a key intermediate in the synthesis of various pharmaceuticals and pesticides.

5-Chloro-2-methylpyridine is typically synthesized by alkylation of 2-chloropyridine with methyl chloride in the presence of a Lewis acid catalyst such as aluminum chloride. The reaction proceeds with good selectivity and yield, making it a common method for the preparation of this compound in industrial settings.

5-Chloro-2-methylpyridine is primarily used in the pharmaceutical and pesticide industries as an intermediate. It plays a crucial role in the synthesis of various drugs and agrochemicals. Additionally, it is used in the production of sensors and semiconductors due to its unique electronic properties.

When handling 5-Chloro-2-methylpyridine, it is essential to use appropriate personal protective equipment (PPE), including gloves and safety goggles. Work should be conducted in a well-ventilated area or a fume hood. Spills should be cleaned up using appropriate absorbents, and the material safety data sheet (MSDS) should be consulted for complete safety information and guidelines.