2-Chloronicotinoyl chloride(CAS: 49609-84-9)

2-Chloronicotinoyl chloride is a crystalline solid with a molecular weight of approximately 170.57 g/mol. It has a high solubility in organic solvents such as dichloromethane and acetone. Chemically, it is a reactive compound, showing strong electrophilic character and readily participating in nucleophilic substitution reactions. It is also known for its acidic nature, making it suitable for various synthetic transformations.

2-Chloronicotinoyl chloride is often synthesized by reacting nicotinic acid with thionyl chloride in the presence of an appropriate base, such as pyridine. This process involves the displacement of the hydroxyl group in nicotinic acid by chlorine, followed by the release of hydrogen chloride. The reaction is typically carried out in an inert organic solvent like dichloromethane under mild conditions, ensuring high yield and selectivity.

2-Chloronicotinoyl chloride finds applications in various industries, particularly in pharmaceuticals, where it serves as a valuable intermediate in the synthesis of drugs. It is also used in the production of organic polymers, where its reactivity is harnessed for chain initiation or functional group introduction. Additionally, it plays a role in the development of sensors and semiconductors due to its ability to form stable complexes with various metals.

Handling 2-Chloronicotinoyl chloride requires strict safety protocols. It should be stored in a cool, dry place away from direct sunlight and heat sources. Personal protective equipment (PPE) such as gloves, goggles, and a lab coat is essential to prevent skin and eye contact. The compound should be handled in a well-ventilated area or a fume hood to avoid inhalation of vapors. In case of a spill, immediately contain it using appropriate absorbents and follow the safety data sheet (SDS) guidelines for disposal. Emergency showers and eyewash stations should be readily accessible in the vicinity.