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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

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant1,2-Difluoro-4-nitrobenzeneHCID 123053—
ReactantHCID 178422234HCID 178422234—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product4-(2-Fluoro-4-nitrophenoxy)-2-methyl-1H-pyrrolo[2,3-b]pyridineHCID 2108163746%

Reaction Conditions

Temperature50 °C

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

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07439246B2
Source datasetuspto-grants-2008_10
ORD IDord-251d103fdcd14913a8fff803fe5553b3
Source noteuspto-grants-2008_10