HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2117175Generated: October 30, 2026
Sodium hydride → 2-Fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)aniline
https://huagongshe.com/reaction/2117175
Participants
| Role | Name | HCID | Charge |
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| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | 4-Amino-3-fluorophenol | HCID 2735919 | — |
| Reactant | 4-Chloro-1H-pyrrolo[2,3-b]pyridine | HCID 11389493 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | N-methyl-2-pyrrolidone | HCID 13387 | — |
| Product | 2-Fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)aniline | HCID 17979351 | 19% |
Reaction Steps
To a solution of 4-chloro-1H-pyrrolo[2,3-b]pyridine (50 mg, 0.33 mmol, prepared according to Thibault, C. et al. Org. Lett. 2003, 5, 5023) in NMP (0.5 mL) were added 4-amino-3-fluorophenol (51 mg, 0.40 mmol) and DIEA (0.1 mL, 0.57 mmol). The mixture was heated at 250° C. in a microwave oven for 1 h and then cooled to room temperature. To the mixture was added NaH (10 mg, 0.4 mmol) and the mixture was again heated at 250° C. for 3 h. After cooling, the mixture was diluted with H2O and extracted with EtOAc. The organic layer was washed with H2O, brine, and dried over MgSO4. After filtration and concentration in vacuo, the residue was purified by flash column chromatography (ISCO RediSep® silica gel cartridge) to give the title compound (15 mg, 19%). MS (ESI) m/z 244.1 (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-56f858d9c8bb4550896d9a31b8f5fa4a |
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| Source note | uspto-grants-2008_10 |
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