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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1394402Generated: October 30, 2026

Bromide ion → HCID 16751620, compound

https://huagongshe.com/reaction/1394402

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromide ionHCID 259—
ReactantHCID 4560212HCID 4560212—
ReactantSodium MethoxideHCID 10942334—
SolventMethanolHCID 887—
SolventWaterHCID 962—
ProductHCID 16751620HCID 167516203%

Reaction Steps

To a solution of 2-Amino-5-bromo-1-ethoxycarbonylmethyl-pyridinium; bromide (2.86 g, 8.4 mmol) in methanol (30 mL) was added sodium methoxide (25 wt %, 2.5 mL, 10.1 mmol). The reaction mixture was stirred at room temperature overnight under argon. The reaction mixture was diluted with water and then extracted three times with ethyl acetate. The organic extracts were washed with brine, dried over magnesium sulfate, filtered, evaporated to yield a tan solid. The crude material was purified by column chromatography eluting with 3, 5, and 10% methanol/dichloromethane. The product was obtained as a brown solid (56 mg, 3%). 1H NMR (CDCl3) δ 7.85 (s, 1H), 7.67 (dd, J=1.6, 9.5 Hz, 1H), 7.07 (d, J=9.5 Hz, 1H), 4.52 (s, 2H); MS (m/e): 215 (MH+); HRMS: calc'd MH+ for C7H5BrN2O 212.9672; found 212.9664.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07348432B2
Source datasetuspto-grants-2008_03
ORD IDord-6398843a20e44fb78b14978242e24dd4
Source noteuspto-grants-2008_03