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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1924499Generated: October 26, 2026

4-(Methylsulphonyl)phenylhydrazine → 3-[2-(4-Methanesulfonyl-phenyl)-2H-pyrazol-3-yl]-1-phenyl-1H-pyridazin-4-one

https://huagongshe.com/reaction/1924499

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-(Methylsulphonyl)phenylhydrazineHCID 70142—
Reactant(E)-3-(3-(Dimethylamino)acryloyl)-1-phenylpyridazin-4(1H)-oneHCID 12742246—
Product3-[2-(4-Methanesulfonyl-phenyl)-2H-pyrazol-3-yl]-1-phenyl-1H-pyridazin-4-oneHCID 4621957712%

Reaction Steps

The product was obtained starting from 3-((E)-3-Dimethylamino-acryloyl)-1-phenyl-1H-pyridazin-4-one (A-1) and 4-(methylsulfonyl)phenylhydrazine according to the method described for Example 1 in 12% yield. MS: M=392.9 (M+H)+

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08178538B2
Source datasetuspto-grants-2012_05
ORD IDord-5a2d8a3e399541eda643954dddff339f
Source noteuspto-grants-2012_05