HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2117166Generated: October 29, 2026
Potassium Carbonate → 4-(2-Fluoro-4-nitrophenoxy)-2-methyl-1H-pyrrolo[2,3-b]pyridine
https://huagongshe.com/reaction/2117166
Participants
| Role | Name | HCID | Charge |
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| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 1,2-Difluoro-4-nitrobenzene | HCID 123053 | — |
| Reactant | HCID 178422234 | HCID 178422234 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 4-(2-Fluoro-4-nitrophenoxy)-2-methyl-1H-pyrrolo[2,3-b]pyridine | HCID 21081637 | 46% |
Reaction Steps
A mixture of 2-methyl-1H-pyrrolo[2,3-b]pyridin-4-ol (90 mg, TFA salt, 0.34 mmol), 3,4-difluoronitrobenzene (0.05 mL) and potassium carbonate (100 mg, 0.72 mmol) in DMF (1 mL) was stirred at 50° C. for 2 h. The mixture was diluted with water and extracted with ethyl acetate (3×5 mL). The combined extracts were washed with water, dried (MgSO4) and concentrated in vacuo to afford the crude product, which was purified by preparative HPLC to give the title compound (45 mg, 46%). 1H NMR (CD3OD) δ 8.25 (dd, 2H, J=10.4, 2.6 Hz), 8.12 (m, 1H), 8.04 (d, 1H, J=5.5 Hz), 7.30 (t, 1H, J=8.3 Hz), 6.67 (d, 1H, J=5.5 Hz), 5.95 (s, 1H), 2.41 (s, 3H); MS(ESI+) m/z 288 (M+H)+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07439246B2 |
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| Source dataset | uspto-grants-2008_10 |
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| ORD ID | ord-251d103fdcd14913a8fff803fe5553b3 |
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| Source note | uspto-grants-2008_10 |
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