3-Chlorophthalic anhydride

3-Chlorophthalic anhydride is a monochlorinated aromatic anhydride. It is an isomer of 4-chlorophthalic anhydride and a derivative of phthalic anhydride.

3-Chlorophthalic anhydride
Names
Preferred IUPAC name
4-Chloro-2-benzofuran-1,3-dione
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.003.800 Edit this at Wikidata
UNII
  • InChI=1S/C8H3ClO3/c9-5-3-1-2-4-6(5)8(11)12-7(4)10/h1-3H checkY
    Key: UERPUZBSSSAZJE-UHFFFAOYSA-N checkY
  • InChI=1/C8H3ClO3/c9-5-3-1-2-4-6(5)8(11)12-7(4)10/h1-3H
    Key: UERPUZBSSSAZJE-UHFFFAOYAN
  • Clc1cccc2c1C(=O)OC2=O
Properties
C8H3ClO3
Molar mass 182.56 g·mol−1
Melting point ~123 °C
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Properties

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3-Chlorophthalic anhydride has a melting point of around 123 °C. It may hydrolize in presence of water.

Applications

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3-Chlorophthalic anhydride may be used to produce herbicides and pesticides, intermediates for active pharmaceutical ingredients and can be used as a monomer for the production of polyimides.

See also

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References

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