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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2263075Generated: November 2, 2026

Pyridine → HCID 68777872, compound

https://huagongshe.com/reaction/2263075

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2,2,2-Trichloroethyl chloroformateHCID 87063—
Reactant4-AminopyridazineHCID 298492—
SolventTetrahydrofuranHCID 8028—
ProductHCID 68777872HCID 687778724.4%

Reaction Steps

To a solution of pyridazine-4-amine (1.73 g, 18.2 mmol) and pyridine (4.41 ml, 54.6 mmol) in tetrahydrofuran (100 ml) was added 2,2,2-trichloroethyl chloroformate (3.76 ml, 27.3 mmol) was added, the mixture was stirred for 1.5 hours with ice-cooling, the reaction mixture was poured into ice-water and the mixture was extracted with ethyl acetate. The extract was washed with water and dried over anhydrous magnesium sulfate and the solvent was distilled off under reduced pressure to obtain the desired product (218 mg, 4.4%) as a solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07851473B2
Source datasetuspto-grants-2010_12
ORD IDord-616cf92b17b148c49ef588d828dea04a
Source noteuspto-grants-2010_12