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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1358314Generated: November 1, 2026

Diethyl Ether → Pyridine-4-amidine hydrochloride

https://huagongshe.com/reaction/1358314

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDiethyl EtherHCID 3283—
Reactant4-CyanopyridineHCID 7506—
ReactantAmmonium ChlorideHCID 25517—
ReactantSodiumHCID 5360545—
SolventMethanolHCID 887—
ProductPyridine-4-amidine hydrochlorideHCID 277684493%

Reaction Steps

To a solution of 0.23 g sodium in 40 ml methanol was added 10.62 g 4-cyanopyridine at room temperature. Stirring was continued for 6 h followed by the addition of 5.9 g ammoniumchloride and stirring was continued for another 10 h. Then 120 ml diethylether was added and the precipitate was filtered off after 30 min and washed once with 20 ml of diethylether. The product was dried under highly reduced pressure. 14.95 g 4-amidino-pyridine hydrochloride was obtained as a white powder.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06596719B1
Source datasetuspto-grants-2003_07
ORD IDord-83121c0b3d7e444c99628ff5ef5863bd
Source noteuspto-grants-2003_07