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CAS No. : | 2105-96-6 | MDL No. : | MFCD04038714 |
Formula : | C6H4FNO3 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | JSRMPTJZAJUPGZ-UHFFFAOYSA-N |
M.W : | 157.10 | Pubchem ID : | 16751861 |
Synonyms : |
|
Signal Word: | Danger | Class: | 9 |
Precautionary Statements: | P261-P264-P270-P272-P273-P280-P301+P312+P330-P302+P352-P305+P351+P338+P310-P333+P313-P391-P501 | UN#: | 3077 |
Hazard Statements: | H302-H315-H317-H318-H410 | Packing Group: | Ⅲ |
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 potassium carbonate; In acetone; at 40℃; for 6h; | 4-Fluoro-3-nitrophenol (3.14 g) was dissolved in acetone (40 ml) . To the solution were added methyl iodide (5.68 g) and potassium carbonate (5.53 g) , and the mixture was stirred at 40°C for 6 hours. Then, methylene chloride (50 ml) was added thereto, the insoluble matter was removed by filtration, and the filtrate was concentrated under reduced pressure. The residue was dissolved in ethyl acetate (50 ml) . The organic layer was washed with 1 N sodium hydroxide aqueous solution, water and brine, dried over sodium sulfate, and filtered. The filtrate was concentrated under reduced pressure to give l-fluoro-4- methoxy-2 -nitrobenzene (3.47 g) as a brown oil. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
> 99% | With sodium hydrogencarbonate; In acetonitrile; at 70℃; for 13h; | A CH3CN (50 mL) solution of <strong>[2105-96-6]4-<strong>[2105-96-6]fluoro-3-nitrophenol</strong></strong> (4.71 g, 30 mmol), NaHCO3 (2.65 g, 31.5 mmol) and piperidine (3.02 mL, 30.6 mmol) was stirred at 70° C. for 13 days until less than 2percent starting material was left unreacted. Volatiles were removed in vacuo and the product was purified by silica gel column chromatography. Compound 3-nitro-4-(piperidin-1-yl)phenol was obtained as a reddish-brown color oil: 6.6 g (>99percent yield); 1H NMR (300 MHz, Chloroform-d) delta 7.23 (d, J=3.0 Hz, 1H), 7.10 (d, J=8.8 Hz, 1H), 6.98 (dd, J=8.8, 3.0 Hz, 1H), 5.14 (br s, 1H), 2.92-2.88 (m, 4H), 1.73-1.64 (m, 4H), 1.58-1.52 (m, 2H); LRMS (M+H) m/z 223.41. |
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