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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2117330Generated: October 26, 2026

Sodium Carbonate → 5-(4-Methoxyphenyl)pyridazin-3(2H)-one

https://huagongshe.com/reaction/2117330

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium CarbonateHCID 10340—
Reactant(4-Methoxyphenyl)boronic acidHCID 201262—
Reactant5-Chloropyridazin-3(2H)-oneHCID 19905718—
CatalystBis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)HCID 178418228—
Solvent1,4-DioxaneHCID 31275—
Product5-(4-Methoxyphenyl)pyridazin-3(2H)-oneHCID 13558916465%

Reaction Steps

Five reaction tubes each containing 5-chloropyridazin-3(2H)-one (100 mg, 0.77 mmol), 4-methoxyphenylboronic acid (230 mg, 1.53 mmol), dioxane (3 ml), 2M aqueous sodium carbonate solution (1 ml) and [1,1′-bis(diphenylphosphino)ferrocene] dichloropalladium (20 mg) were irradiated in a microwave reactor at 150° C. for 10 minutes. After cooling to room temperature the mixtures were combined and filtered. The collected solid was washed with water (3 ml), ethyl acetate (5 ml) and ether (5 ml), then dried to give the title compound (724 mg, 93%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07442701B2
Source datasetuspto-grants-2008_10
ORD IDord-a3b371af3355415f918a8206316f5130
Source noteuspto-grants-2008_10