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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1924485Generated: October 26, 2026

Hydrochloric Acid → 1-Phenyl-3-(2-o-tolyl-2H-pyrazol-3-yl)-1H-pyridazin-4-one

https://huagongshe.com/reaction/1924485

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactanto-TolylhydrazineHCID 68256—
Reactant(E)-3-(3-(Dimethylamino)acryloyl)-1-phenylpyridazin-4(1H)-oneHCID 12742246—
Product1-Phenyl-3-(2-o-tolyl-2H-pyrazol-3-yl)-1H-pyridazin-4-oneHCID 4621919255%

Reaction Steps

The product was obtained starting from 3-((E)-3-Dimethylamino-acryloyl)-1-phenyl-1H-pyridazin-4-one (A-1) and o-tolylhydrazine×HCl according to the method described for Example 1 in 55% yield. MS: M=329.1 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178538B2
Source datasetuspto-grants-2012_05
ORD IDord-9dc8f760076147159d08dedf0c1403e4
Source noteuspto-grants-2012_05