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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2374756Generated: October 27, 2026

Oxalyl chloride → N-(2-chlorobenzyl)-3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carboxamide

https://huagongshe.com/reaction/2374756

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant2-ChlorobenzylamineHCID 66648—
ReactantN-(2,4-dichlorobenzyl)-3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carboxamideHCID 10339420—
Reactant3-Oxo-6-(pyridin-4-yl)-2,3-dihydropyridazine-4-carboxylic acidHCID 12790238—
SolventDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
SolventTriethylamineHCID 8471—
ProductN-(2-chlorobenzyl)-3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carboxamideHCID 9974550—

Reaction Steps

Working as in example 2 for the preparation of N-(2,4-dichlorobenzyl)-3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carboxamide, but starting with 0.3 g of 3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carboxylic acid, 10 cm3 of dichloromethane, 0.02 cm3 of dimethylformamide, 0.12 cm3 of oxalyl chloride, 0.19 cm3 of 2-chlorobenzylamine and 0.19 cm3 of triethylamine, 0.25 g of N-(2-chlorobenzyl)-3-oxo-6-pyridin-4-yl-2,3-dihydropyridazine-4-carboxamide was obtained in the form of a White solid melting above 260° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07462613B2
Source datasetuspto-grants-2008_12
ORD IDord-8763a2d2139640c0aeae53a3cdb466f3
Source noteuspto-grants-2008_12