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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1580972Generated: October 25, 2026

Ammonia → 5-(3,4-Dibromobutyl)pyridine-2-carboxamide

https://huagongshe.com/reaction/1580972

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantThionyl ChlorideHCID 24386—
Reactant5-(3,4-Dibromobutyl)pyridine-2-carboxylic acidHCID 216720—
SolventChloroformHCID 6212—
Product5-(3,4-Dibromobutyl)pyridine-2-carboxamideHCID 13271877—

Reaction Conditions

Temperature50 °C

Reaction Steps

20 g of 5-(3,4-dibromobutyl)picolinic acid was added to 15 ml of thionyl chloride and resulting solution was kept to warm at 50°C for one-half hour. Reaction mixture was evaporated in reduced pressure and resulting oily residue was dissolved in chloroform 100 ml. Through the solution dry ammonia gas was passed for five minutes with cooling. White precipitate was removed by filtration and washed with chloroform. Filtrate and washings are combined and evaporated in reduced pressure. Resulting solid was crystallized from benzene to give 10.2 g of the pure product as platelets.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03935221
Source datasetuspto-grants-1976_01
ORD IDord-024697468ebd42488821dcb604921c7d
Source noteuspto-grants-1976_01