Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2278909Generated: November 1, 2026

Ammonium Chloride → HCID 90403702, compound

https://huagongshe.com/reaction/2278909

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 90403789HCID 90403789—
CatalystZincHCID 23994—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
ProductHCID 90403702HCID 9040370268.5%

Reaction Steps

A solution of 2-(4-methyl-1H-imidazol-1-yl)-4-((6-nitropyridin-3-yl)oxy)pyridine (1.3 g, 4.37 mmol) in MeOH (20 mL)/THF (20 mL) was treated sequentially with NH4Cl (7.02 g, 131 mmol) and zinc dust (2.86 g, 43.7 mmol) and stirred at RT for 2 h. The mixture was diluted with THF, the solids removed via filtration through diatomaceous earth, washed with THF and the filtrate concentrated to dryness. The material was treated with THF, the solids removed via filtration and the filtrate concentrated to dryness, treated with DCM and sonicated. The resulting solid was collected via filtration and dried to afford 5-((2-(4-methyl-1H-imidazol-1-yl)pyridin-4-yl)oxy)pyridin-2-amine (800 mg, 68%). 1H NMR (400 MHz, DMSO-d6): δ 8.39 (d, J=1.4 Hz, 1 H), 8.28 (d, J=5.8 Hz, 1 H), 7.83 (d, J=2.9 Hz, 1 H), 7.63 (s, 1 H), 7.31-7.30 (m, 2 H), 6.70 (dd, J=5.8, 2.2 Hz, 1 H), 6.51 (d, J=8.9 Hz, 1 H), 6.05 (s, 2 H), 2.14 (d, J=1.0 Hz, 3 H); MS (ESI) m/z: 268.2 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09133183B2
Source datasetuspto-grants-2015_09
ORD IDord-0a437cad6f844605a2dad628a640495d
Source noteuspto-grants-2015_09