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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 221208Generated: October 30, 2026

Ethanol → HCID 16040978, compound

https://huagongshe.com/reaction/221208

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
ReactantHCID 11773086HCID 11773086—
SolventTolueneHCID 1140—
ProductHCID 16040978HCID 16040978—

Reaction Conditions

Temperature80 °C

Reaction Steps

5-(4-chlorophenyl)-1-(2,4-dichlorophenyl)-4,5-dihydro-pyrazole-3-carboxylic acid (0.55 g, 1.50 mmol) was dissolved in 20 mL of toluene and (2 mL) ethanol and (0.05 g) of p-toluenesulfonic acid monohydrate were added. The mixture was heated at 80° C. for 72 hours. After cooling to room temperature, the reaction mixture washed with sodium hydrogen carbonate solution and water, dried over sodium sulphate and evaporated to dryness to give the title compound in form of oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08207156B2
Source datasetuspto-grants-2012_06
ORD IDord-7a774b1eefa745a9b7734f69f92248ea
Source noteuspto-grants-2012_06