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CAS No. : | 165047-24-5 | MDL No. : | MFCD00061196 |
Formula : | C7H3F3O | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | CYIFJRXFYSUBFW-UHFFFAOYSA-N |
M.W : | 160.09 | Pubchem ID : | 519278 |
Synonyms : |
|
Signal Word: | Danger | Class: | 3 |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | 1989 |
Hazard Statements: | H225-H315-H319-H335 | 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 |
---|---|---|
54% | With caesium carbonate; In N,N-dimethyl-formamide; at 25℃; for 2h; | 3,5-bis(trifluoromethyl)phenol (2.5 g, 10.86 mmol, 1 .10 equiv) and Cs2C03 (6.5 g, 19.95 mmol, (0476) 2.00 equiv) were dissolved in DMF (30 g, 410.45 mmol, 41 .07 equiv) and 2,4,5-trifluorobenzaldehyde (1 .6 g, 9.99 mmol, 1 .00 equiv) was added. The resulting reaction was stirred for 2 h at 25°C. Then the reaction was quenched by the addition of water, extracted with ethyl acetate, and the organic layers were combined. The resulting mixture was washed with brine, dried over anhydrous sodium sulfate and concentrated in vacuo. The residue was purified by silica gel column chromatography with petroleum ether. This resulted in 2 g (54percent) of 4-[3,5-bis(trifluoromethyl)phenoxy]-2,5-difluorobenzaldehyde as a white solid. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
92% | With potassium carbonate; In N,N-dimethyl-formamide; at 20℃; for 1.0h; | Into a 25-m L round-bottom flask was placed a solution of 2,4,5-trifluorobenzaldehyde (500 mg, 3.12 mmol, 1 .00 equiv) in N,N-dimethylformamide (10 mL). To the solution were added potassium carbonate (862 mg, 6.24 mmol, 2.00 equiv) and <strong>[1025718-84-6]3-bromo-5-(trifluoromethyl)phenol</strong> (753 mg, 3.12 mmol, 1 .00 equiv). The solution was stirred for 1 hour at room temperature and then quenched by the addition of 10 mL of water. The resulting solution was extracted with 50 m L of ethyl acetate and the combined organic layers were washed with brine (4 x 20 m L), dried over anhydrous sodium sulfate and concentrated under vacuum. This resulted in 1 .1 g (92%) of 4-[3-bromo-5-(trifluoromethyl)phenoxy]-2,5- difluorobenzaldehyde as a yellow solid |
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