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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1821678Generated: November 2, 2026

O-Cresol → HCID 23013956, compound

https://huagongshe.com/reaction/1821678

Reaction equation

Participants

RoleNameHCIDCharge
ReactantO-CresolHCID 335—
ReactantSodiumHCID 5360545—
Reactant3,4,6-Trichloro-5-methoxypyridazineHCID 22939915—
SolventTolueneHCID 1140—
ProductHCID 23013956HCID 2301395634.1%

Reaction Steps

In toluene (100 mL) was dissolved 5.32 g (49.3 mmol) of 2-methylphenol, and 1.13 g (49.1 mmol) of sodium, and then, 5.80 g (27.2 mmol) of 3,4,6-trichloro-5-methoxypyridazine were added to the solution and the resulting mixture was stirred for 4 hours under reflux. The reaction mixture was poured into ice-cold water, and extracted with ethyl acetate. The organic layers were combined, washed successively with water and brine, and dried over anhydrous sodium sulfate. The solvent was removed, and the residue was purified by silica gel column chromatography (hexane:ethyl acetate, gradient) and recrystallized from isopropyl ether to obtain 3.0 g (8.4 mmol, Yield: 31%) of 3-chloro-5-methoxy-4,6-bis(2-methylphenoxy)pyridazine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07608563B2
Source datasetuspto-grants-2009_10
ORD IDord-be2dfb9eb73e4f8e8fe0914fefd18a55
Source noteuspto-grants-2009_10