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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 474062Generated: October 30, 2026

Ammonium Chloride → HCID 86668033, compound

https://huagongshe.com/reaction/474062

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantSodium AzideHCID 33557—
ReactantHCID 86668032HCID 86668032—
SolventEthanolHCID 702—
SolventEthyl AcetateHCID 8857—
ProductHCID 86668033HCID 8666803374%

Reaction Conditions

Temperature80 °C

Reaction Steps

A mixture of methanesulfonic acid 2-(6-bromo-3-fluoro-pyridin-2-yl)-2-hydroxy-propyl ester (5 g, 15.24 mmol), ammonium chloride (4.08 g, 76 mmol) and sodium azide (2.476 g, 38.1 mmol) in ethanol (100 ml) was stirred at 80° C. for 20 hours. The reaction mixture was diluted with ethyl acetate and washed with water and brine. The organic layer was dried over sodium sulfate, filtered and evaporated. 3.1 g (74% yield). TLC (cyclohexane/ethyl acetate 9:1) Rf=0.35; LCMS RtH5=0.97 min. (ES+ 275, 277); 1H-NMR (360 MHz, CDCl3): 7.51 (dd, 1H), 7.36 (dd, 1H), 5.18 (s broad, 1H, OH), 3.68-3.60 (AB system, 2H), 1.59 (s, 3H, CH3).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08637508B2
Source datasetuspto-grants-2014_01
ORD IDord-7df4c2c0ceb54651a5abc938d4a00776
Source noteuspto-grants-2014_01