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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1896192Generated: October 31, 2026

Triethylamine → N-(5-Bromopyrazin-2-YL)-2,6-difluorobenzamide

https://huagongshe.com/reaction/1896192

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
Reactant2,6-Difluorobenzoyl chlorideHCID 87438—
Reactant2-Amino-5-bromopyrazineHCID 599539—
SolventDichloromethaneHCID 6344—
ProductN-(5-Bromopyrazin-2-YL)-2,6-difluorobenzamideHCID 53415197—

Reaction Steps

To a stirred solution of 2-bromo-5-amino-pyrazine (24 mmol), triethyl amine (TEA) (5 mL) in dry dichloromethane (DCM) (50 mL) at 0° C. was added 2,6-difluoro-benzoyl chloride (3.0 mL, 24 mmol) dropwise. The mixture was allowed to warm to to room temperature over 2 h before it was washed with water (2×100 mL) and dried. Removal of solvents gave N-(5-bromo-pyrazin-2-yl)-2,6-difluorobenzamide (b) as white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518950B2
Source datasetuspto-grants-2013_08
ORD IDord-2d0999c011274f4aa7c070b2e6c54f51
Source noteuspto-grants-2013_08