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CAS 23090-18-8

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2-Oxo-2H-pyran-5-carbonyl chloride

Description:
2-Oxo-2H-pyran-5-carbonyl chloride, also known as 5-chloro-2-oxo-2H-pyran-3-carboxylic acid chloride, is a chemical compound characterized by its pyran ring structure, which features a carbonyl group and a chlorine substituent. This compound typically appears as a colorless to pale yellow liquid or solid, depending on its purity and form. It is known for its reactivity, particularly due to the presence of the carbonyl chloride functional group, which makes it a useful intermediate in organic synthesis, especially in the preparation of various pharmaceuticals and agrochemicals. The compound is sensitive to moisture and should be handled with care, as it can hydrolyze to form the corresponding carboxylic acid. Additionally, it may exhibit moderate toxicity, necessitating appropriate safety precautions during handling and use. Its applications often involve reactions such as acylation and the formation of esters or amides, highlighting its significance in synthetic organic chemistry.
Formula:C6H3ClO3
InChI:InChI=1S/C6H3ClO3/c7-6(9)4-1-2-5(8)10-3-4/h1-3H
InChI key:InChIKey=SFSCMSZFSVPPOM-UHFFFAOYSA-N
SMILES:C(Cl)(=O)C=1C=CC(=O)OC1
Synonyms:
  • 2-Oxo-2H-pyran-5-carbonyl chloride
  • 2-Oxo-2H-pyran-5-carbonylchloride
  • 2H-Pyran-5-carbonyl chloride, 2-oxo-
  • Coumalic acid chloride
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