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CAS No. : | 154257-75-7 | MDL No. : | MFCD01631387 |
Formula : | C7H3ClF2O2 | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | YGYZTZAEZMCPSC-UHFFFAOYSA-N |
M.W : | 192.55 | Pubchem ID : | 2773532 |
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 |
---|---|---|
35.5 g | With sulfuric acid; at 100 - 120℃; | In a 500 mL four-necked flask, 250 mL of 20% (by mass concentration) dilute sulfuric acid was poured,33.8 g of <strong>[887267-38-1]3-chloro-2,4-difluorobenzonitrile</strong> obtained in the step (5) was added portionwise with stirring,Keeping the reaction until the content of <strong>[887267-38-1]3-chloro-2,4-difluorobenzonitrile</strong> is less than or equal to 2% at 100 to 120 DEG C;(7) The oil layer in the solution obtained in step (6) was extracted with 150 mL of toluene,Separate the oil layer,Wash the oil layer with cold water 2 to 3 times,Cooling to about 0 overnight,A yellowish powdery solid precipitated, which was filtered off and dried, yielding 35.5 g of 3-chloro-2,4-difluorobenzoic acid as a pale yellow powder. |