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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1511013Generated: November 4, 2026

Sulfuric Acid → HCID 66995222, compound

https://huagongshe.com/reaction/1511013

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 numberUS08212045B2
Source datasetuspto-grants-2012_07
ORD IDord-c5f4052fe7ca426e85f2cc48d13fc7f2
Source noteuspto-grants-2012_07