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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1636336Generated: November 1, 2026

Methanesulfonyl chloride → HCID 19351329, compound

https://huagongshe.com/reaction/1636336

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanesulfonyl chlorideHCID 31297—
Reactant2-(4-aminophenyl)-2,4-dihydro-5-methyl-3H-pyrazol-3-oneHCID 80815—
ProductHCID 19351329HCID 19351329—

Reaction Steps

From the reaction of 5-methyl-2-(4-aminophenyl)-2,4-dihydro-pyrazol-3-one and methansulfonylchloride (reaction per Example 11, where methanesulfonylchloride is used in respective molecular amounts), N-(4-(4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-phenyl)-N-methylsulfonylmethanesulfonamide is obtained. Subsequent reaction with 2-ethyl aniline yields N-(4-(4-(2-Ethylanilinomethylene)-4,5-dihydro-3-methyl-5-oxo-1H-pyrazol-1-yl)-phenyl)-N-methylsulfonylmethansulfonamide, Mp: 268° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06034099
Source datasetuspto-grants-2000_03
ORD IDord-c3b57e62fcc646669e2d120ddd54176a
Source noteuspto-grants-2000_03