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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 992265Generated: October 31, 2026

Water → HCID 18412008, compound

https://huagongshe.com/reaction/992265

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant3-PyridinemethanolHCID 7510—
ReactantSodium hydrideHCID 24758—
ReactantHCID 18412020HCID 18412020—
SolventDimethylformamideHCID 6228—
ProductHCID 18412008HCID 18412008—

Reaction Steps

To a suspension of 62.5% sodium hydride (92 mg) in N,N-dimethylformamide (8 ml) was added 3-pyridylcarbinol (0.25 ml) under ice cooling, followed by stirring at room temperature for 20 minutes. Then, 4-bromo-2-(4-fluorophenyl)-5-methyl-6-(2-methyl-1,3-dioxolan-2-yl)-3(2H)-pyridazinone (738 mg) was added, followed by stirring at room temperature for 2 hours. The reaction mixture was poured into water and extracted with ethyl acetate. After washing with water and a brine, the organic layer was dried over anhydrous magnesium sulfate. The solvent was removed by evaporation, and the resulting residue was crystallized from ether to obtain 2-(4-fluorophenyl)-5-methyl-6-(2-methyl-1,3-dioxolan-2-yl)-4-(3-pyridylmethoxy)-3(2H)-pyridazinone (320 mg).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06469003B1
Source datasetuspto-grants-2002_10
ORD IDord-8fc7dfb2e0f74442b46a1233740f67ab
Source noteuspto-grants-2002_10