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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 524289Generated: November 1, 2026

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

https://huagongshe.com/reaction/524289

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Methylbenzenesulphonyl chlorideHCID 2734595—
Reactant5-[3-(benzyloxy)-4-methoxyphenyl]-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochlorideHCID 66616511—
Product5-[3-(Benzyloxy)-4-methoxyphenyl]-4,4-dimethyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-oneHCID 67365063—

Reaction Steps

The title compound is prepared analogously as described for GP1 using 5-[3-(benzyloxy)-4-methoxyphenyl]-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one hydrochloride (compound B4*HCl) 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 numberUS09340522B2
Source datasetuspto-grants-2016_05
ORD IDord-44c6e238247a4506be4e73126053e935
Source noteuspto-grants-2016_05