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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2077565Generated: October 30, 2026

Ethanol → HCID 66671708, compound

https://huagongshe.com/reaction/2077565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant4-Fluorobenzenesulfonyl chlorideHCID 9588—
Reactant3-Amino-5-bromopyridineHCID 817681—
SolventDichloromethaneHCID 6344—
SolventSodium BicarbonateHCID 516892—
ProductHCID 66671708HCID 6667170823%

Reaction Steps

To a round bottom flask was added 5-bromopyridin-3-amine (0.80 g, 4.6 mmol, Matrix Scientific, Columbia S.C.), ethanol (15 mL) and 4-fluorobenzenesulfonyl chloride (2.2 g, 12 mmol, Fluka, St. Louis, Mo.). The mixture was allowed to stir at ambient temperature overnight. The mixture was diluted with CH2Cl2 and sat. NaHCO3, then the solution was extracted with CH2Cl2 (3×25 ml). The combined extracts were dried over Na2SO4, filtered and concentrated. Purification by silica gel chromatography (10-30% EtOAc/CH2Cl2) afforded the title compound as an off-white crystalline solid (0.35 g, 23% yield). MS (ESI pos. ion) m/z: 333 (M+1). 1H NMR (400 MHz, MeOH-d4) δ ppm 8.35 (s, 1H), 8.22 (s, 1H), 7.83-7.89 (m, 2H), 7.76-7.81 (m, 1H), 7.25-7.32 (m, 2H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07928140B2
Source datasetuspto-grants-2011_04
ORD IDord-b4e5368f30ad48dca7bfb3c10d41c3ea
Source noteuspto-grants-2011_04