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CAS No. : | 63010-71-9 | MDL No. : | MFCD00272395 |
Formula : | C9H6FNO | Boiling Point : | No data available |
Linear Structure Formula : | - | InChI Key : | HTELWJVKZKSAQI-UHFFFAOYSA-N |
M.W : | 163.15 | Pubchem ID : | 2737334 |
Synonyms : |
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Signal Word: | Warning | Class: | |
Precautionary Statements: | P261-P305+P351+P338 | UN#: | |
Hazard Statements: | H302-H315-H319-H335 | Packing Group: | |
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 |
---|---|---|
45% | With triethylamine; In dichloromethane; at 0 - 20℃;Inert atmosphere; | To a solution of <strong>[63010-71-9]8-fluoroquinolin-4-ol</strong> (20 g, 122 mmol) in DCM (100 mL) and Et3N (25 g, 122.6 mmol) was slowly dropwised Tf2O (42g, 147 mmol) at 0 under N2. The mixture was stirred overnight at r.t. The mixture was quenched by H2O (30 mL) and extracted with DCM (100 mL 3). The organic layer was dried over with Na2SO4, filtered and concentrated to give crude product which was further purified by column chromatography, eluting with EA: PE=1: 10 to give the product (16.1 g, 45%). [M+H] +=296. To a solution of <strong>[63010-71-9]8-fluoroquinolin-4-ol</strong> (20 g, 123 mmoL) in DCM (200 mL) was added DIPEA (24 g, 185 mmol) at room temperature, followed by addition of trifluoromethanesulfonic anhydride (52 g, 185 mmol) drop wise at 0 and the mixture was stirred for 1 hour. Saturated aqueous of NaHCO3was added and extracted with DCM (100 mL×3) , combined the organic layer and the organic layer was evaporated under reduced pressure to give crude product, which was further purified by column chromatography (PE: EA=10: 1) to give product as an oil (24 g in 66%yield) .1H NMR (400 MHz, DMSO-d6) deltaH9.15 (d, J= 4.8 Hz, 1H) , 7.93 (dd, J= 1.2 Hz, J = 4.8 Hz, 1H) , 7.82-7.88 (m, 3H) , MS (ESI) m/e [M+1]+=295.9. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With formaldehyd; In sodium hydroxide; | (a) 8-Fluoro-4-hydroxyquinoline was reacted with formaldehyde in aqueous sodium hydroxide to give the novel compound 8-fluoro-4-hydroxy-3-hydroxymethylquinoline, m.p. 176-178 (from dichloromethane). |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
With potassium carbonate; In N,N-dimethyl-formamide; at 20℃; for 16.0h; | 2-Chloro-1-fluoro-4-nitrobenzene (2.15 g) and <strong>[63010-71-9]8-fluoroquinolin-4-ol</strong> (2.0 g) were dissolved in N,N-dimethylformamide (12 mL). Potassium carbonate (2.54 g) was added, and the mixture was stirred at room temperature for 16 hr. The mixture was partitioned between ethyl acetate (100 mL) and water (80 mL), and the organic layer was dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was separated and purified by silica gel column chromatography (hexane:ethyl acetate=90:10?20:80) to give the title compound (3.27 g) as a white powder. 1H-NMR (DMSO-d6) delta: 6.96 (1H, d, J= 5.0 Hz), 7.60-7.80 (3H, m), 8.00-8.10 (1H, m), 8.30-8.40 (1H, m), 8.61 (1H, d, J= 3.0 Hz), 8.83 (1H, d, J= 5.0 Hz) |
[ 343-10-2 ]
6-Fluoro-4-hydroxyquinoline-3-carboxylic acid
Similarity: 0.76
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6-Fluoro-4-hydroxyquinoline-3-carboxylic acid
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