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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914174Generated: October 25, 2026

3-Methylbenzenesulphonyl chloride → 5-(3,4-Dimethoxyphenyl)-4,4-diethyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-one

https://huagongshe.com/reaction/1914174

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Methylbenzenesulphonyl chlorideHCID 2734595—
Reactant5-(3,4-dimethoxyphenyl)-4,4-diethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-oneHCID 66616474—
Product5-(3,4-Dimethoxyphenyl)-4,4-diethyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-oneHCID 67365323—

Reaction Steps

The title compound is prepared analogously as described for GP1 using 5-(3,4-dimethoxyphenyl)-4,4-diethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one (compound B7) and 3-methylbenzenesulfonyl chloride as starting compounds. The crude product is purified by crystallization from methanol to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08609848B2
Source datasetuspto-grants-2013_12
ORD IDord-cafa64f9d47f4e29bf92e127b5645969
Source noteuspto-grants-2013_12