4-Chlorophthalic anhydride is a monochlorinated aromatic anhydride. It is an isomer of 3-chlorophthalic anhydride and a derivative of phthalic anhydride.
Names | |
---|---|
Preferred IUPAC name
5-Chloro-2-benzofuran-1,3-dione | |
Identifiers | |
3D model (JSmol)
|
|
ChemSpider | |
ECHA InfoCard | 100.003.866 |
PubChem CID
|
|
UNII | |
CompTox Dashboard (EPA)
|
|
| |
| |
Properties | |
C8H3ClO3 | |
Molar mass | 182.56 g·mol−1 |
Melting point | ~99 °C |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
|
Properties
editIt has a melting point of around 99 °C. Like most acid anhydrides, it can hydrolyze in the presence of water.
Production
editIt can be produced by chlorination of phthalic anhydride.
Applications
editIt 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.
References
edit- Chlorination of phthalic anhydride http://www.freepatentsonline.com/4297283.html