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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 747791Generated: October 30, 2026

Dichloromethane → 5-Bromo-2-(pyrrolidin-1-yl)pyridine

https://huagongshe.com/reaction/747791

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDichloromethaneHCID 6344—
Reactant1,4-DibromobutaneHCID 8056—
Reactant2-Amino-5-bromopyridineHCID 70622—
ReactantDiisopropylethylamineHCID 81531—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventTolueneHCID 1140—
Product5-Bromo-2-(pyrrolidin-1-yl)pyridineHCID 16414226—

Reaction Steps

4.95 g (28.6 mmol) of 2-amino-5-bromopyridine was dissolved in 40 ml of toluene. 9.95 ml (57.2 mmol) of diisopropylethylamine, 6.15 g (28.6 mmol) of 1,4-dibromobutane and 100 mg (0.82 mmol) of 4-(dimethylamino)pyridine were added to the solution, and they were stirred for three nights. After the treatment with dichloromethane as the extractant in an ordinary manner, the crude product was obtained, which was purified by the silica gel column chromatography to obtain the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07396844B1
Source datasetuspto-grants-2008_07
ORD IDord-ffc62eb2a6a84a6f950a68a81426d2dc
Source noteuspto-grants-2008_07