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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 982830Generated: October 25, 2026

3,4-Difluorobenzyl Chloride → 4-carboxy-2-(3,4-difluorobenzyl)-6-(4-fluoro-3-methylphenyl)-2H-pyridazin-3-one

https://huagongshe.com/reaction/982830

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-Difluorobenzyl ChlorideHCID 2736954—
Reactant6-(4-fluoro-3-methylphenyl)-4-methoxycarbonyl-2H-pyridazin-3-oneHCID 21991459—
Product4-carboxy-2-(3,4-difluorobenzyl)-6-(4-fluoro-3-methylphenyl)-2H-pyridazin-3-oneHCID 2256230866.7%

Reaction Steps

Following the procedure of Example 1(6), 6-(4-fluoro-3-methylphenyl)-4-methoxycarbonyl-2H-pyridazin-3-one and 3,4-difluorobenzyl chloride were reacted. Without purification, the reaction product was reacted further following the procedure of Example 1(7) to yield the title compound as a pale yellow solid (yield: 66.7%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06861428B2
Source datasetuspto-grants-2005_03
ORD IDord-6e924e461c0c4b41ac1a9932e726075d
Source noteuspto-grants-2005_03