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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2280896Generated: October 31, 2026

3,4,5-Trichloropyridazine → HCID 25120492, compound

https://huagongshe.com/reaction/2280896

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4,5-TrichloropyridazineHCID 70111—
ReactantDiisopropylethylamineHCID 81531—
ReactantGlycine ethyl ester, hydrochlorideHCID 2723640—
SolventEthanolHCID 702—
ProductHCID 25120492HCID 2512049231%

Reaction Steps

A solution of 3,4,5-trichloropyridazine (300 mg), glycine ethyl ester hydrochloride (228 mg) and diisopropylethyl amine (844 μL) in ethanol was stirred for 3 hours under reflux. After the reaction was completed, the mixture was concentrated under reduced pressure and the residue was purified by silica gel column chromatography (ethyl acetate:hexane=1:9 to 1:1) to give 126 mg (31% yield) of the title compound as a pale pink amorphous.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09139559B2
Source datasetuspto-grants-2015_09
ORD IDord-402302714e924469948234d86a9e1a21
Source noteuspto-grants-2015_09