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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 524165Generated: October 25, 2026

3-Methylbenzenesulphonyl chloride → 5-(7-Methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-4,4-dimethyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-one

https://huagongshe.com/reaction/524165

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-Methylbenzenesulphonyl chlorideHCID 2734595—
Reactant5-(7-methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-oneHCID 67363308—
Product5-(7-Methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-4,4-dimethyl-2-{1-[(3-methylphenyl)sulfonyl]piperidin-4-yl}-2,4-dihydro-3H-pyrazol-3-oneHCID 46204004—

Reaction Steps

The title compound is prepared analogously as described for GP1 using 5-(7-methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one (compound B12) and 3-methylbenzenesulfonyl chloride as starting compounds. The crude product is purified by chromatography (amino phase silica gel and DCM) and crystallization of the product containing fractions from DCM and diethyl ether to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09340522B2
Source datasetuspto-grants-2016_05
ORD IDord-e0933d8a427c46bc88757ceb909611e3
Source noteuspto-grants-2016_05