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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2253554Generated: November 1, 2026

4-Cyanopyridine → HCID 19745599, compound

https://huagongshe.com/reaction/2253554

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-CyanopyridineHCID 7506—
Reactant1,4-DibromobutaneHCID 8056—
SolventDimethylformamideHCID 6228—
ProductHCID 19745599HCID 19745599226.3%

Reaction Conditions

Temperature60 °C

Reaction Steps

A mixture of 4-cyanopyridine (12.5 g; 0.12 mol) and 1,4-dibromobutane (13 g; 0.06 mol) in dimethylformamide (50 ml) was stirred at 60° C. for 24 hours, and yellow precipitate was collected by filtration and washed with acetine to give tetramethylenebis(4-cyanopyridinium)dibromide (28.8 g). m.p., 296°-300° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05232574
Source datasetuspto-grants-1993_08
ORD IDord-6db1963ae603448298bb4179606206a6
Source noteuspto-grants-1993_08