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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2359967Generated: October 31, 2026

Water → HCID 54898288, compound

https://huagongshe.com/reaction/2359967

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant3,4-DichlorophenolHCID 7258—
ReactantPotassium HydroxideHCID 14797—
Reactant5-Chloro-1,3-dimethylpyrazole-4-carboxaldehydeHCID 2777397—
SolventDimethylformamideHCID 6228—
ProductHCID 54898288HCID 5489828854.8%

Reaction Conditions

Temperature150 °C

Reaction Steps

5-chloro-1,3-dimethyl-1H-pyrazole-4-carbaldehyde (500.0 mg, 0.00315 mol), 3,4-dichlorophenol (565 mg, 0.00344 mol) and potassium hydroxide (265 mg, 0.00472 mol) were stirred in DMF (2.0 mL). Mixture was heated at 150° C. for 20 min using microwave. Water was added and resulting mixture was extracted with ethyl acetate. Organic layer was washed with brine twice, dried over MgSO4 and evaporated. The resulting oil was purified by column chromatography (10% to 20% ethyl acetate/heptane) to give 5-(3,4-dichlorophenoxy)-1,3-dimethyl-1H-pyrazole-4-carbaldehyde (492 mg, 54.7%) as white solid. Step 2:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08686018B2
Source datasetuspto-grants-2014_04
ORD IDord-be6cbc7591c84fe7b3fdc51f6eda503b
Source noteuspto-grants-2014_04