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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2278902Generated: October 31, 2026

Ammonium Chloride → 5-((2-Chloropyridin-4-yl)oxy)-6-ethylpyridin-2-amine

https://huagongshe.com/reaction/2278902

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactant3-((2-Chloropyridin-4-yl)oxy)-2-ethyl-6-nitropyridineHCID 90403108—
CatalystZincHCID 23994—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
Product5-((2-Chloropyridin-4-yl)oxy)-6-ethylpyridin-2-amineHCID 9042643094.7%

Reaction Steps

A suspension of Example A8 (1.3 g, 4.65 mmol) and NH4Cl (7.5 g, 140 mmol) in MeOH (24 mL) and THF (24 mL) was treated portion-wise with zinc dust (3 g, 45.9 mmol) and stirred at RT overnight. The solids were removed via filtration through diatomaceous earth and the filtrate concentrated to dryness to afford 5-((2-chloropyridin-4-yl)oxy)-6-ethylpyridin-2-amine (1.1 g, 85%). MS (ESI) m/z: 250.1 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133183B2
Source datasetuspto-grants-2015_09
ORD IDord-677f7aa73e094fdfa08a6b5c79957b7a
Source noteuspto-grants-2015_09