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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1717680Generated: October 26, 2026

Ammonia → 6-Bromopyridine-2-carboxamide

https://huagongshe.com/reaction/1717680

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant6-Bromopyridine-2-carboxylic acidHCID 593919—
SolventThionyl ChlorideHCID 24386—
Solvent1,4-DioxaneHCID 31275—
Product6-Bromopyridine-2-carboxamideHCID 2196140845%

Reaction Conditions

Temperature70 °C

Reaction Steps

6-Bromopicolinic acid (1000 mg, 4.95 mmol) was suspended in thionyl chloride (15 mL) and heated at 70° C. for 5 h. The reaction was cooled to room temperature and the volatiles were condensed under reduced pressure. A solution of ammonia (2M in dioxane (15 mL) was added to the residue and then the solvents were removed under reduced pressure. The crude residue was purified by MPLC with a gradient of 0 to 20% MeOH/dichloromethane to give 6-Bromo-pyridine-2-carboxylic acid amide as a white powder (555 mg, 45%). MS ES (MH+=201.01203.0).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07803956B2
Source datasetuspto-grants-2010_09
ORD IDord-ef965202b9f4400aa9f46cf1ee70eb7f
Source noteuspto-grants-2010_09