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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1749553Generated: November 3, 2026

Hydrochloric Acid → 2-(5-Methoxypyridin-3-yl)ethanamine dihydrochloride

https://huagongshe.com/reaction/1749553

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantHCID 131733599HCID 131733599—
SolventIsopropanolHCID 3776—
Solvent1,4-DioxaneHCID 31275—
Product2-(5-Methoxypyridin-3-yl)ethanamine dihydrochlorideHCID 11816208575%

Reaction Steps

To a solution of tert-butyl (2-(5-methoxypyridin-3-yl)ethyl)carbamate (153 mg, 0.606 mmol) in isopropanol (2 mL) was added 4M HCl in dioxane (2 mL) and the mixture was stirred at room temperature for 16 h. The mixture was concentrated, the residual solid was washed with diethyl ether and dried in vacuum to provide the title compound as a white solid (103 mg, 0.458 mmol, 75%). 1H NMR (500 MHz, CD3OD): δ (ppm) 8.56 (d, J=2.52 Hz, 1H), 8.51 (s, 1H), 8.27 (s, 1H), 4.15 (s, 3H), 3.23-3.38 ppm (m, 4H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09156798B2
Source datasetuspto-grants-2015_10
ORD IDord-3216a94490ca4da1a7555e6314fbec2d
Source noteuspto-grants-2015_10