Description

Description

4-Chloro-1,3-dioxolan-2-one (CAS No. 3967-54-2) is a high-purity organic compound with the molecular formula C₃H₃ClO₃. This chlorinated cyclic carbonate is a versatile reagent widely used in organic synthesis, electrochemistry, and materials science. Its IUPAC name is 4-chloro-1,3-dioxolan-2-one, and it is also known as Chloroethylene carbonate. The compound features a reactive chloro group adjacent to the carbonate ring, making it a valuable intermediate for nucleophilic substitution reactions. It is supplied as a clear to pale-yellow liquid (or low-melting solid, depending on storage conditions) with ??98% purity (GC). Suitable for use as a solvent additive in lithium-ion battery electrolytes, as well as a precursor for polymer modifications and pharmaceutical synthesis. Store under inert atmosphere in a cool, dry place to prevent hydrolysis.

Application

4-Chloro-1,3-dioxolan-2-one serves as a key electrolyte additive in lithium-ion batteries to enhance SEI (solid electrolyte interphase) formation and improve cycle life. It is also employed as a reactive intermediate in the synthesis of specialty polymers, including polycarbonates with tailored properties. Researchers utilize this compound as a chlorinating agent or building block in fine chemical synthesis, particularly for heterocyclic compounds.

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