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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 381913Generated: October 25, 2026

2-benzyl-4,5-dibromopyridazin-3(2H)-one → 2-Benzyl-4-methoxy-5-bromo-3(2H)-pyridazinone

https://huagongshe.com/reaction/381913

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-benzyl-4,5-dibromopyridazin-3(2H)-oneHCID 9902699—
Reactant4,5-Dibromo-2-(2,2,2-trifluoroethyl)-2,3-dihydropyridazin-3-oneHCID 16091046—
SolventMethanolHCID 887—
Product2-Benzyl-4-methoxy-5-bromo-3(2H)-pyridazinoneHCID 21933933—

Reaction Steps

2-Benzyl-4-methoxy-5-bromo-3(2H)-pyridazinone is prepared according to the method of Example 83B starting with 2-benzyl-4,5-dibromo-3(2H)-pyridazinone, in place of 2-(2,2,2-trifluoroethyl)-4,5-dibromo-3(2H)-pyridazinone and substituting methanol in place of isopropanol.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06307047B1
Source datasetuspto-grants-2001_10
ORD IDord-9ecbc7b7a9304e28901d437553efaf0e
Source noteuspto-grants-2001_10