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CAS No. : | 942-06-3 | MDL No. : | MFCD00075034 |
Formula : | C8H2Cl2O3 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | ULSOWUBMELTORB-UHFFFAOYSA-N |
M.W : | 217.01 | Pubchem ID : | 70334 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H315-H319-H335 | Packing Group: | |
GHS Pictogram: |
* All experimental methods are cited from the reference, please refer to the original source for details. We do not guarantee the accuracy of the content in the reference.
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
95% | With aq. NaOH; zinc; | EXAMPLE 6 Preparation of 4-Chlorophthalic Acid from 4,5-Dichlorophthalic Anhydride A 10 mL flask equipped with a condenser and a magnetic stirrer was chagged with 0.2 g 4,5-dichlorophthalic anhydride, 0.28 g of zinc dust, and 2 mL of 10% aq. NaOH. The reaction mixture was heated with stirring at a bath temperature of 93-108 C. for 8.7 h. The reaction mixture was then acidified with hydrochloric acid and extracted with ethyl acetate. Analysis of the extract indicated a 95% yield (gc area%) of 4-chlorophthalic acid, at 86% conversion. The retention time of the peak was identical with that of an authentic sample. |