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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1636344Generated: November 3, 2026

m-Hydrazinobenzenesulphonic acid → 3-(4,5-Dihydro-5-oxo-3-propyl-1H-pyrazol-1-yl)-benzenesulfonic acid

https://huagongshe.com/reaction/1636344

Reaction equation

Participants

RoleNameHCIDCharge
Reactantm-Hydrazinobenzenesulphonic acidHCID 67312—
Reactant3-OxooctanoateHCID 17804644—
Product3-(4,5-Dihydro-5-oxo-3-propyl-1H-pyrazol-1-yl)-benzenesulfonic acidHCID 19351347—

Reaction Steps

From the reaction of 3-hydrazinobenzenesulfonic acid and ethylbutyrylacetate, 3-(4,5-Dihydro-5-oxo-3-propyl-1H-pyrazol-1-yl)-benzenesulfonic acid is obtained. Subsequent reaction with 2-ethylaniline yields 3-(4-(2-ethylanilinomethylene)-4,5-dihydro-5-oxo-3-propyl-1H-pyrazol-1-y 1)-benzenesulfonic acid, Mp 258.6° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06034099
Source datasetuspto-grants-2000_03
ORD IDord-5cb35f17c68c4e1eabb5d9a7d1177d52
Source noteuspto-grants-2000_03