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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 631795Generated: October 26, 2026

Ethylenediamine → N-(4-Ethoxy-2-pyridyl)ethane-1,2-diamine

https://huagongshe.com/reaction/631795

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylenediamineHCID 3301—
ReactantPotassium CarbonateHCID 11430—
Reactant2-Bromo-4-ethoxypyridineHCID 565160—
ProductN-(4-Ethoxy-2-pyridyl)ethane-1,2-diamineHCID 8982595264%

Reaction Conditions

Temperature140 °C

Reaction Steps

A mixture of 2-bromo-4-ethoxypyridine (500 mg, 2.475 mmol), ethane-1,2-diamine (9.9 ml, 150 mmol) and potassium carbonate (685 mg, 4.95 mmol) was stirred under microwave heating at 140° C. for 2 hours. The reaction mixture was filtered, the remaining solids were rinsed with ethanol and the combined filtrates were concentrated under reduced pressure and purified by flash column chromatography (silica, gradient of 2%-100% 7N NH3 in MEOH in DCM) to yield 287 mg of a solid (1.584 mmol, 64%). MS(ESI) m/z=182.0 [M+1]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09321724B2
Source datasetuspto-grants-2016_04
ORD IDord-edbf27583e6b4909ac041ab012341622
Source noteuspto-grants-2016_04