Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1774750Generated: November 1, 2026

Ethanolamine → 2-(6-chloropyrazin-2-ylamino)ethanol

https://huagongshe.com/reaction/1774750

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant2,6-DichloropyrazineHCID 78504—
ReactantDiisopropylethylamineHCID 81531—
Solvent1-ButanolHCID 263—
Product2-(6-chloropyrazin-2-ylamino)ethanolHCID 5340883850%

Reaction Conditions

Temperature80 °C

Reaction Steps

In a sealed tube, 2,6-dichloropyrazine (1 g, 6.71 mmol) was mixed with 2-aminoethanol (0.492 g, 8.05 mmol), Hunig's base (1.13 g, 8.73 mmol) in BuOH (7 mL) and the reaction mixture was heated to 80° C. over night. The mixture was concentrated in vacuo and the residue partitioned between NaHCO3 (20 mL) and EtOAc (100 mL). The organic phase was separated, washed with brine, dried over Na2SO4, filtered and evaporated to dryness to give the title compound (0.583 g, 50%) as a light yellow foam. MS: 174.1 (M+H+).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09260408B2
Source datasetuspto-grants-2016_02
ORD IDord-0651662b5f2445acb5803f7bbfa2290b
Source noteuspto-grants-2016_02