Product Description
5-Chloro-2-pentanone、5891-21-4
AI Product Description
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5-Chloro-2-pentanone, chemically designated as 1-chloro-4-pentanone in some nomenclatures though strictly defined by IUPAC as a five-carbon chain with a ketone at position 2 and chlorine at position 5, is a valuable organic intermediate widely utilized in synthetic chemistry. Its molecular formula is C5H9ClO, and it carries the CAS Registry Number 628-37-1. This clear, colorless liquid possesses a sharp, chlorinated odor and exhibits moderate solubility in water while dissolving readily in common organic solvents such as ethanol, ether, and acetone.
The primary application of 5-chloro-2-pentanone lies in its role as a versatile building block for the pharmaceutical and agrochemical industries. Due to the presence of both a reactive carbonyl group and a halogenated terminal carbon, it serves as an excellent substrate for nucleophilic substitution and condensation reactions. Chemists frequently employ this compound to synthesize complex heterocyclic structures, including pyrazoles, imidazoles, and various substituted pyrrolidines, which are core scaffolds in numerous bioactive molecules. In medicinal research, derivatives synthesized from this precursor often demonstrate potential biological activities ranging from antimicrobial properties to central nervous system effects, although specific pharmacological profiles depend heavily on the final structural modifications.
Furthermore, 5-chloro-2-pentanone is instrumental in the production of specialized polymers and resin modifiers where controlled reactivity is required. Its volatility and specific functional groups make it suitable for use in fine chemical manufacturing processes that demand high purity and precise stoichiometric control. Safety protocols dictate handling this substance with care, as it may cause skin irritation and is potentially harmful if inhaled or swallowed. Storage should be conducted in cool, dry, well-ventilated areas away from strong oxidizing agents and incompatible materials to prevent decomposition or hazardous reactions. Overall, 5-chloro-2-pentanone remains a critical component in the global supply chain for advanced organic synthesis, bridging simple petrochemical feedstocks with high-value therapeutic and industrial end-products through efficient chemical transformation pathways.