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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1631017Generated: October 31, 2026

Ethanolamine → 5-Chloro-6-(2-hydroxyethylamino)nicotinonitrile

https://huagongshe.com/reaction/1631017

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolamineHCID 700—
Reactant5,6-Dichloropyridine-3-carbonitrileHCID 12878464—
Solventtert-Butyl methyl etherHCID 15413—
Solvent1,4-DioxaneHCID 31275—
Product5-Chloro-6-(2-hydroxyethylamino)nicotinonitrileHCID 5855420589.3%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of 5,6-dichloro-nicotinonitrile (Bionet GC-0755, 500 mg, 2.89 mmol) and ethanolamine (0.87 mL, 14.45 mmol) was prepared in anhydrous dioxane (5 mL) and heated at 80° C. for 24 hours. The reaction mixture was diluted with MTBE (50 mL) and washed with water (2×25 mL) and brine (25 ml). The aqueous layers were extracted with MTBE (50 mL). The organic layers were combined, dried (Na2SO4) and concentrated under reduced pressure to give the title compound as a white powder (510 mg, 89%). HPLC (Method A), Rt: 1.9 min (purity: 99.9%). UPLC/MS, M−(ESI): 196.0.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08791142B2
Source datasetuspto-grants-2014_07
ORD IDord-b11165d2daa7499a92542ae889486fb3
Source noteuspto-grants-2014_07