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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 347571Generated: October 30, 2026

Sodium hydride → 2-Fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)aniline

https://huagongshe.com/reaction/347571

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
ReactantDiisopropylethylamineHCID 81531—
Reactant4-Amino-3-fluorophenolHCID 2735919—
Reactant4-Chloro-1H-pyrrolo[2,3-b]pyridineHCID 11389493—
SolventWaterHCID 962—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product2-Fluoro-4-(1H-pyrrolo[2,3-b]pyridin-4-yloxy)anilineHCID 1797935119%

Reaction Conditions

Temperature250 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07173031B2
Source datasetuspto-grants-2007_02
ORD IDord-4cf314e610484d32ae2695387ccd5734
Source noteuspto-grants-2007_02