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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 76081Generated: October 27, 2026

Chloropyrazine → Pyrazin-2-yl-(6-trifluoromethyl-pyridin-3-yl)-amine

https://huagongshe.com/reaction/76081

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloropyrazineHCID 73277—
Reactant5-Amino-2-(trifluoromethyl)pyridineHCID 2737744—
SolventTolueneHCID 1140—
ProductPyrazin-2-yl-(6-trifluoromethyl-pyridin-3-yl)-amineHCID 66615925—

Reaction Conditions

Temperature95 °C

Reaction Steps

To a solution of 5-amino-2-trifluoromethylpyridine (0.81 g) in 3 Ml toluene was added chloropyrazine (0.45 Ml, 1.0 equiv) via syringe. The homogeneous solution was heated to 95° C., then cooled to room temperature and concentrated in vacuo. Purification by silica gel chromatography (40% EtOAc in hexanes) afforded the title compound: 1H NMR (400 MHz, CHLOROFORM-D) δ ppm 7.5 (s, 1H) 7.6 (s, 1H) 8.0 (s, 1H) 8.2 (s, 1H) 8.4 (s, 2H) 8.8 (s, 1H); (M+H)+241.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08835451B2
Source datasetuspto-grants-2014_09
ORD IDord-05ccb44a87384efd87e49f2df85e767d
Source noteuspto-grants-2014_09