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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1439135Generated: November 2, 2026

Hydrochloric Acid → 4-(4-Chlorophenoxy)-1-methyl-3,5-diphenyl-1H-pyrazole

https://huagongshe.com/reaction/1439135

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant4-[(1-Methyl-3,5-diphenyl-1H-pyrazol-4-yl)oxy]anilineHCID 21398101—
ReactantSodium NitriteHCID 23668193—
SolventWaterHCID 962—
Product4-(4-Chlorophenoxy)-1-methyl-3,5-diphenyl-1H-pyrazoleHCID 21398087—

Reaction Steps

A solution of sodium nitrite (3.1 g, 0.0422 mole) in water (10 ml) is added slowly at 0° C to 5° C to a well stirred, chilled solution of 4-(p-aminophenoxy)-1-methyl-3,5-diphenylpyrazole (15.1 g, 0.0442 mole) in concentrated hydrochloric acid (50 ml).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04058391
Source datasetuspto-grants-1977_11
ORD IDord-72ddf36afaad4156b4a6aa9ced54660c
Source noteuspto-grants-1977_11