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CAS No. : | 179062-06-7 | MDL No. : | MFCD04038250 |
Formula : | C7H6F4N2 | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | WMKGEQCSIZQIEK-UHFFFAOYSA-N |
M.W : | 194.13 | Pubchem ID : | 2774460 |
Synonyms : |
|
Signal Word: | Warning | Class: | N/A |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | N/A |
Hazard Statements: | H302-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 |
---|---|---|
95% | palladium-carbon; In ethanol; | D. 3,4-Diamino-6-fluorobenzotrifluoride A mixture of 3-amino-6-fluoro-4-nitrobenzotrifluoride (328 mg, 1.45 mmol) and 10% Pd/C (50 mg) in ethanol (15 mL) was hydrogenated for 2 h at 25 C. under 25 psi H2. The catalyst was removed by filtration with celite and the solvent was removed by rota-evaporation to give 270 mg of 3,4-diamino-6-fluorobenzotrifluoride (95%) as a brown solid. 1 H NMR (CDCl3): delta3.432 (br, 4H), 6.469 (d, 1H, J=8.4 Hz); 6.860 (d, 1H, J=6.6 Hz). |
With tin(ll) chloride; In ethanol; at 65 - 70℃; | To a stirred solution of 11.35 g (50.6 mmol) of the nitroaniline 18a in 250 mL of ethanol was added 57.1 g (253 mmol) of tin (II) chloride dihydrate at room temperature. The reaction was heated at 65-70 C. for 45 minutes. The reaction was cooled and poured into 900 mL of ice water. It was basified to pH 8 with solid sodium bicarbonate and extracted with ethyl acetate. The combined organic extracts were washed with brine, dried over anhydrous sodium sulfate, and evaporated to give 9.33 g of compound 19a as a dark red solid. Calcd for C7H6F4N4.H+=195; Found m/z=195. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With sodium hydrogensulfite; In ethanol; for 40.0h;Heating / reflux; | To a mixture of 2.8 g (7.4 mmol) of compound 16 in 10 mL of NaHSO3 and 25 mL of ethanol was added 1.43 g (7.4 mmol) of compound 19a. The mixture was stirred under reflux for 40 h and concentrated. The residue was diluted with 60 mL of H2O and extracted with three 80 mL portions of ethyl acetate. The combined organic extracts were washed with 50 mL of brine and concentrated. The residue was purified by silica gel chromatography eluting with a gradient from 10 to 40% ethyl acetate in hexanes to give 1.1 g of compound 11c. Calcd m/z for C25H24BrF4N3O2.H+=556; found m/z=556. |
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