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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 535388Generated: October 30, 2026

N-bromobutanimide → 5-Bromo-4-chloro-6-(2-phenylethynyl)pyridin-2-amine

https://huagongshe.com/reaction/535388

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-bromobutanimideHCID 67184—
Reactant4-Chloro-6-(2-phenylethynyl)pyridin-2-amineHCID 86694368—
SolventAcetonitrileHCID 6342—
Product5-Bromo-4-chloro-6-(2-phenylethynyl)pyridin-2-amineHCID 86694373—

Reaction Steps

A mixture of 4-chloro-6-(2-phenylethynyl)pyridin-2-amine B3a (1.0 g, 4.37 mmol), NBS (778 mg, 4.37 mmol) and ACN (20 ml) is stirred for 3 h at RT in the dark. The mixture is concentrated in vacuo and the product purified NP chromatography. Yield: 1.0 g (74%). HPLC-MS: M+H=307/309.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08859541B2
Source datasetuspto-grants-2014_10
ORD IDord-353c3fa3196042598fd525898b4361c0
Source noteuspto-grants-2014_10