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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 524202Generated: October 26, 2026

Benzoyl chloride, 3-chloro- → 2-{1-[(3-Chlorophenyl)carbonyl]piperidin-4-yl}-5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-one

https://huagongshe.com/reaction/524202

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzoyl chloride, 3-chloro-HCID 69252—
Reactant5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-piperidin-4-yl-2,4-dihydro-3H-pyrazol-3-one hydrochlorideHCID 66616406—
Product2-{1-[(3-Chlorophenyl)carbonyl]piperidin-4-yl}-5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2,4-dihydro-3H-pyrazol-3-oneHCID 46206278—

Reaction Steps

The title compound is prepared analogously as described for GP1 using 5-(3,4-dimethoxyphenyl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one hydrochloride (compound B1*HCl) and 3-chlorobenzoyl chloride as starting compounds. The crude product is purified by crystallization from EA to yield the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09340522B2
Source datasetuspto-grants-2016_05
ORD IDord-c7a48a3c94aa4e81a365855aa9319790
Source noteuspto-grants-2016_05