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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2174654Generated: October 31, 2026

Water → 3-Bromo-5-(4-methylsulfonylphenyl)pyrazin-2-amine

https://huagongshe.com/reaction/2174654

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantN-bromobutanimideHCID 67184—
Reactant5-[4-(Methylsulfonyl)phenyl]-2-pyrazinamineHCID 58084384—
SolventDimethylformamideHCID 6228—
Product3-Bromo-5-(4-methylsulfonylphenyl)pyrazin-2-amineHCID 5808437084%

Reaction Steps

NBS (1.807 g, 10.15 mmol) was added to a stirred solution of 5-(4-methylsulfonylphenyl)pyrazin-2-amine (2.53 g, 10.15 mmol) in DMF (40 mL) and the reaction stirred at ambient temperature for 15 hours. The reaction mixture was added slowly to rapidly stirring water and the resultant precipitate was isolated by filtration and dried in vacuo to give the sub-title compound as a beige solid that was used without further purification (2.8 g, 84% Yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09062008B2
Source datasetuspto-grants-2015_06
ORD IDord-a0da0d13b1674a2f8852c66c22ec0d2c
Source noteuspto-grants-2015_06