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CAS No. : | 153034-82-3 | MDL No. : | MFCD03095290 |
Formula : | C6H3FINO | Boiling Point : | - |
Linear Structure Formula : | - | InChI Key : | VONGIOGTLFSXDE-UHFFFAOYSA-N |
M.W : | 251.00 | Pubchem ID : | 9992328 |
Synonyms : |
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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 |
---|---|---|
37.52% | In 1-methyl-pyrrolidin-2-one; at 185.0℃; for 6.5h;Inert atmosphere; capped; | To a 45 mL pressure bottle was added 2-fluoro-4-iodonicotinaldehyde (1.05 g, 4.18 mmol), <strong>[131774-72-6]3-hydrazinylbenzenesulfonamide</strong> (800 mg, 4.27 mmol), and anhydrous NMP (15 mL). The reaction mixture was flushed with argon, securely capped, and heated at 185C for 6.5h. The reaction mixture was cooled to room temperature and slowly added to a rapidly stirred solution of diethyl ether (430 mL). The resulting solid material was filtered and the pale yellow Et20 filtrate was allowed to stand for 18h at roomtemperature. The yellow crystals precipitated out and were collected by vacuum filtration to give 425mg (16.42%) of the title compound as a yellow solid as a "dot" 2 NMP complex by proton NMR. LC/MS (Condition B): ret. T = 3.2 min, (M+H)+ 400.83. XH NMR (500 MHz, DMSO-d6) δ ppm 7.56 (s, 2 H) 7.78-7.84 (m, 2 H) 7.89-7.92 (m, 1 H) 8.37-8.42 (m, 2 H) 8.57 (dt, J=4.81, 2.33 Hz, 1 H) 8.75 (s, 1 H). Second and third crops of yellow solid (300mg, 11.7%; 246mg, 9.4%) were identical to the first crop of material. |
16.42% | In 1-methyl-pyrrolidin-2-one; at 185.0℃; for 6.5h;Inert atmosphere; Sealed vial; | Intermediate 5A: 3-(4-Iodo-lH-pyrazolo[3,4-b]pyridin-l-yl)benzenesulfonamide[00120] To a 45 mL pressure bottle was added 2-fluoro-4-iodonicotinaldehyde (1.05 g, 4.18 mmol), <strong>[131774-72-6]3-hydrazinylbenzenesulfonamide</strong> (800 mg, 4.27 mmol), and anhydrous NMP (15 mL). The reaction mixture was flushed with argon, securely capped, and heated at 185 C for 6.5h. The reaction mixture was cooled to room temperature and slowly added to a rapidly stirred solution of diethyl ether (430 mL). The resulting solid material was filtered and the pale yellow Et20 filtrate was allowed to stand for 18h at roomtemperature. The yellow crystals precipitated out and were collected by vacuum filtration to give 425mg (16.42%) of the title compound as a yellow solid as a "dot" 2 NMP complex by proton NMR. LC/MS (Condition B): ret. T = 3.2 min, (M+H)+ 400.83. XH NMR (500 MHz, DMSO-d6) δ 7.56 (s, 2 H) 7.78-7.84 (m, 2 H) 7.89-7.92 (m, 1 H) 8.37- 8.42 (m, 2 H) 8.57 (dt, J=4.81, 2.33 Hz, 1 H) 8.75 (s, 1 H). Second and third crops of yellow solid (300mg, 11.7%; 246mg, 9.4%) were identical to the first crop of material. |
Yield | Reaction Conditions | Operation in experiment |
---|---|---|
[00343] (2-Fluoro-4-iodopyridin-3-yl)methanol F OH. To a solution of 2-fluoro-4- iodonicotinaldehyde (3.50 g, 13.94 mmol) in absolute EtOH (56 mL) was added sodium borohydride (0.264 g, 6.97 mmol) at room temperature. The reaction was stirred at room temperature for 1 h, followed by the slow addition of 1 M aqueous hydrochloric acid. The product was extracted with CH2CI2 (repeated four times), and the organic layers were combined, dried over sodium sulfate, filtered and concentrated to dryness. The aqueous phase was basified to pH 8-10 with 2 M aqueous sodium hydroxide and extracted with diethylether (repeated four times). Then the organic layers were combined, dried over sodium sulfate, filtered, combined with the previously obtained residue and concentrated to dryness under vacuum. The residue was used without any purification in the next step. LC/MS m/z 254[M+H]+. |
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