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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 347563Generated: October 30, 2026

Ammonium Chloride → 3-Fluoro-4-(2-methyl-1H-pyrrolo[2,3-b]pyridin-4-yloxy)benzenamine

https://huagongshe.com/reaction/347563

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant4-(2-Fluoro-4-nitrophenoxy)-2-methyl-1H-pyrrolo[2,3-b]pyridineHCID 21081637—
CatalystZincHCID 23994—
SolventMeOH tetrahydrofuranHCID 21899815—
Product3-Fluoro-4-(2-methyl-1H-pyrrolo[2,3-b]pyridin-4-yloxy)benzenamineHCID 2108160390.7%

Reaction Steps

A mixture of 4-(2-fluoro-4-nitrophenoxy)-2-methyl-1H-pyrrolo[2,3-b]pyridine (43 mg, 0.15 mmol), zinc dust (50 mg, 0.75 mmol) and ammonium chloride (50 mg) in THF/Methanol (1/2, 0.6 mL) was stirred at room temperature for 1 h, filtered and concentrated in vacuo to afford the desired product (35 mg, 90%), which was sufficiently pure to use in the subsequent reaction. 1H NMR (DMSO-d6) δ 11.71 (s, 1H), 8.04 (d, 1H, J=5.5 Hz), 7.10 (t, 1H, J=8.4 Hz), 6.64 (dd, 1H, J=10.4, 2.6 Hz), 6.51 (m, 1H), 6.35 (d, 1H, J=5.5 Hz), 5.95 (s, 1H), 5.50 (s 2H), 2.41 (s, 3H); MS(ESI+) m/z 258 (M+H)+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07173031B2
Source datasetuspto-grants-2007_02
ORD IDord-e0ea2e6aefdc4ee69f76cb14354d0a78
Source noteuspto-grants-2007_02