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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1523548Generated: November 4, 2026

Sulfuric Acid → HCID 66995222, compound

https://huagongshe.com/reaction/1523548

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantSodium HydroxideHCID 14798—
Reactant5-Bromo-3-(4-fluorophenoxy)picolinonitrileHCID 66995028—
SolventWaterHCID 962—
ProductHCID 66995222HCID 66995222100%

Reaction Steps

A flask was charged with 5-bromo-3-(4-fluorophenoxy)picolinonitrile (10 g, 34 mmol) and sulfuric acid (50 mL). The reaction was stirred at ambient temperature overnight. Water (500 mL) was added carefully and the mixture was adjusted to pH 5.0 using 50% sodium hydroxide. The mixture was extracted with dichloromethane and ethyl acetate, dried and concentrated to afford 5-bromo-3-(4-fluorophenoxy)picolinamide (10.6 g, 34 mmol, 100% yield) as yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09079890B2
Source datasetuspto-grants-2015_07
ORD IDord-6f63c629e7db42f1865eff3b19398dba
Source noteuspto-grants-2015_07