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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1739426Generated: November 2, 2026

Dimethylformamide → 2-bromo-4-[6,7-dimethoxy-2-(4-pyridyl)methyl-phthalazin-1(2H)-on-4-yl]pyridine

https://huagongshe.com/reaction/1739426

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant4-(Chloromethyl)pyridinium chlorideHCID 74570—
Reactant2-bromo-4-(6,7-dimethoxyphthalazin-1(2H)-on-4-yl)pyridineHCID 21840805—
SolventWaterHCID 962—
Product2-bromo-4-[6,7-dimethoxy-2-(4-pyridyl)methyl-phthalazin-1(2H)-on-4-yl]pyridineHCID 1587029778.4%

Reaction Conditions

Temperature80 °C

Reaction Steps

2-Bromo-4-(6,7-dimethoxyphthalazin-1(2H)-on-4-yl)pyridine (362 mg), 4-picolyl chloride hydrochloride (180 mg), and potassium carbonate (359 mg) are added to dimethylformamide (10 ml), and the mixture is heated with stirring at 80° C. for three hours under nitrogen atmosphere. Water is added to the reaction mixture, and the mixture is extracted with methylene chloride. The extract is washed, dried, and concentrated to give 2-bromo-4-[6,7-dimethoxy-2-(4-pyridyl)methylphthalazin-1(2H)-on-4-yl]pyridine (355 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05965730
Source datasetuspto-grants-1999_10
ORD IDord-1ee5755ca0934618bb07b1e373123573
Source noteuspto-grants-1999_10