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CAS No. : | 66176-17-8 | MDL No. : | MFCD03426399 |
Formula : | C9H7NO3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | CHKUQVBJPDLANA-UHFFFAOYSA-N |
M.W : | 177.16 | Pubchem ID : | 2759870 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-H319 | Packing Group: | N/A |
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 |
---|---|---|
With hydrazine hydrate; In ethanol; at 20℃; for 2h; | General procedure: To a solution of different substituted 2-aminobenzoic acid (3 mmol) in 15 mL of THF was added triphosgene (0.30 g, 1 mmol). The mixture was stirred at room temperature and monitored with TLC. After more than 4 h, the solvent was evaporated and the residue was dissolved in 15 mL of EtOH. The hydrazine hydrate (80 %) (0.94 g, 15 mmol) was added to this mixture dropwise. After 2 h, the reaction was completed, 30 mL of ethyl acetate was added. The solution was washed with 1 mol/L hydrochloric acid solution, saturated sodium bicarbonate solution, and brine. The ethyl acetate solution was dried and evaporated, and the residue was applied to a flash column chromatography by eluting with ethyl acetate to give the compounds 1a-f. |