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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 732555Generated: October 30, 2026

Pyridine, hydrofluoride (1:1) → HCID 68815279, compound

https://huagongshe.com/reaction/732555

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridine, hydrofluoride (1:1)HCID 64774—
ReactantNitrilooxonium tetrafluoroborateHCID 11137142—
ReactantHCID 86615015HCID 86615015—
SolventDichloromethaneHCID 6344—
ProductHCID 68815279HCID 6881527930%

Reaction Conditions

Temperature0 °C

Reaction Steps

Under nitrogen and in a plastic vessel, dissolve nitrosonium tetrafluoroborate (84.8 μg, 0.72 mmol) and pyridinium poly(hydrogen fluoride) (70% hydrogen fluoride, 30% pyridine, 300 μL) in dichloromethane (2 mL) and cool to 0° C. Add dropwise 5-(2-furan-2-yl-[1,3]dithiolan-2-yl)-N-methyl-N-propyl-isophthalamic acid methyl ester in dichloromethane (1.5 mL) to the mixture, warm up to room temperature and stir for 2 h. Dilute the mixture with dichloromethane (20 mL) and filter the organic liquid though a pad of aluminum oxide and magnesium sulfate mixture. Concentrate the filtrate and purify (silica gel chromatography, 1:99 to 30:70 ethyl acetate:hexanes) to give the title compound (30%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07585885B2
Source datasetuspto-grants-2009_09
ORD IDord-1e20638298a14eda8f2ac03579660884
Source noteuspto-grants-2009_09