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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 911071Generated: October 30, 2026

Bromine → HCID 66617942, compound

https://huagongshe.com/reaction/911071

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactant945988-97-6HCID 66617889—
SolventAcetic AcidHCID 176—
ProductHCID 66617942HCID 6661794245.53%

Reaction Steps

A flask was charged with ethyl 2-(2-aminopyridin-4-yl)acetate (12.45 g, 69.09 mmol) and acetic acid (100 mL). Bromine (3.550 ml, 69.09 mmol) was added, and the reaction mixture was stirred for 3 hours. The solvent was evaporated in vacuo and the residue was mixed with ice, basified with ammonium hydroxide, and extracted with ethyl acetate. The combined organic layers were washed with brine and concentrated. The residual brown oil was purified by silica gel chromatography, eluting with 1-2% methanol/dichloromethane to provide the desired product (8.15 g, 45.53% yield) as pale yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08022222B2
Source datasetuspto-grants-2011_09
ORD IDord-e39fa3e7cf3240da9cab8a2414608f32
Source noteuspto-grants-2011_09