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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1914094Generated: October 26, 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/1914094

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 numberUS08609848B2
Source datasetuspto-grants-2013_12
ORD IDord-3321cae186094bbc90a37d76e976f024
Source noteuspto-grants-2013_12