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CAS No. : | 25199-84-2 | MDL No. : | MFCD03407380 |
Formula : | C10H6F3NO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | UUROBWTVZZNDFD-UHFFFAOYSA-N |
M.W : | 213.16 | Pubchem ID : | 2759347 |
Synonyms : |
|
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 |
---|---|---|
46.5% | A mixture of aniline (9.30 g, 100 mmol) and ethyl 4,4,4-trifluoro-3-oxobutanoate (36.8 g, 200 mmol) was stirred at 110 C for 1 hour. The reaction mixture was concentrated under reduced pressure, and then diluted with water (20 mL). Conc. H2S04 (110 g, 1.13 mol) was added carefully and the mixture stirred at 90C forhour, then cooled to room temperature and poured into ice water (500 mL). The precipitate was collected by filtration, and then recrystallised from ethanol (50 mL) to give the title compound (9.90 g, 46.5% yield) as a white solid. ?H NMR (400 MHz, DMSO-d6): 12.34 (bs, 1H), 7.75 (m, 2H), 7.45 (d, 1H), 7.32 (m, 1H), 6.99 (s, 1H). MS mlz 214.20 [M+Hjt | |
General Procedure 98: 4-Trifluoromethyl-1H-quinolin-2-one (Intermediate 465)Aniline (7.0 g, 75.3 mmol) and trifluoro ethylacetoacetate (15.4 ml, 105 mmol) were heated at 110 C. for 45 min. The excess ester was removed in vacuo. 75% H2SO4 was added and the mixture was heated at 90 C. for 45 min. After cooling, the mixture was poured onto ice and the resulting precipitate was collected by filtration to give title compound (7.0 g, 44%) which was used in the next step without further purification.MW: 212.15HPLCMS (Method C): [m/z]: 214 | ||
With triethylamine; In toluene;Heating / reflux; | To a solution of the ester (5.46 mmol) and triethylamine (101 g, 10.86 mmol) in toluene (5 mL) was added a solution of aniline (6.52 mmol) in toluene (2 mL) at room temperature. The reaction mixture was refluxed until the reaction was complete. After workup, compound 56 was obtained, which was pure enough to be used in the next step. |
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