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CAS No. : | 452-84-6 | MDL No. : | MFCD00007654 |
Formula : | C7H8FN | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | QZUXMXZNVAJNSE-UHFFFAOYSA-N |
M.W : | 125.14 | Pubchem ID : | 262970 |
Synonyms : |
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Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H315-H319-H335 | 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 |
---|---|---|
61% | With sulfuric acid; potassium nitrate; at -5℃; for 1.0h; | 1-Chloro-5-fluoro-2-methyl-4-nitrobenzene To a cooled (-5 C.) solution of 2-fluoro-5-methylaniline (1 equiv.) in concentrated H2SO4 (0.7 M) was added KNO3 (1.3 equiv.) in several portions within 1 h. The reaction was allowed to warm to room temperature and stirred overnight. The reaction mixture was poured into ice-water slowly, and extracted with MTBE, washed with saturated NaHCO3 and brine, dried over Na2SO4, filtered and concentrated. The resulted residue was recrystallized from ethyl acetate and petroleum ether to afford 1-chloro-5-fluoro-2-methyl-4-nitrobenzene (61%) as a yellow solid. 1H NMR (400 MHz, CDCl3) delta ppm: 8.00 (d, J=8.0 Hz, 1H), 7.35 (d, J=10.4 Hz, 1H), 2.45 (s, 3H). |