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CAS No. : | 77324-87-9 | MDL No. : | MFCD00230865 |
Formula : | C9H9NO4 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | TVGKPVDDCDQBRC-UHFFFAOYSA-N |
M.W : | 195.17 | Pubchem ID : | 4377758 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P273 | UN#: | N/A |
Hazard Statements: | H302-H412 | 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 |
---|---|---|
82% | With hydrogenchloride; In dichloromethane; water; for 96.0h;Heating / reflux; | To a solution of compound 2 (64.0 g, 0.39 mol) in MeOH (1500 mL), H2O (50 mL) and CH2CI2 (500 mL) was purged with HCI gas till the solution was saturated. The mixture was left standing for 48 hours, then refluxed for 48 hours. TLC (petroleum ether: ethyl acetate = 10:1) showed the reaction was complete, then the mixture was concentrated in vacuo to give crude product, which was purified by column chromatography (first petroleum ether, then petroleum ether: ethyl acetate 1 :1) to afford compound 3 (33 g, yield: 82%) as a yellow solid and recover compound 2 (42 g) as a grey solid. 1H NMR (400 MHz, CDCI3): 1H NMR delta 8.76 (S, 1 H), 8.22- 8.24 (dd, J = 8.0 Hz, 1 H), 7.42-7.44 (d, J = 8.0 Hz, 1 H), 3.95 (s, 3H), 2.71 (s, 3H). |
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