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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1636361Generated: November 2, 2026

4-Hydrazinobenzoic acid → HCID 19351288, compound

https://huagongshe.com/reaction/1636361

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-Hydrazinobenzoic acidHCID 12089—
ReactantDiethyl acetonedicarboxylateHCID 66045—
ProductHCID 19351288HCID 19351288—

Reaction Steps

From the reaction of p-hydrazinobenzoic acid and diethyl-3-oxoglutarate, 4-(3-ethoxycarbonylmethyl-4,5-dihydro-5-oxo-1H-pyrazol-1-yl)-benzoic acid is obtained. Subsequent reaction with 2-ethylaniline yields 4-(4-(2-thylanilinomethylene)-3-ethoxycarbonylmethyl-4,5-dihydro-5-oxo-1H-pyrazol-1-yl)-benzoic acid, Mp 246° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06034099
Source datasetuspto-grants-2000_03
ORD IDord-b2ba0a8a8c6e41e38e887dbc10a092c1
Source noteuspto-grants-2000_03