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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1295767Generated: October 31, 2026

1,3-Dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-one → HCID 3678472, compound

https://huagongshe.com/reaction/1295767

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-Dihydro-1-(4-piperidinyl)-2H-benzimidazol-2-oneHCID 88638—
Reactant3-(Trifluoromethyl)benzenesulfonyl chlorideHCID 2733250—
Solventdichloromethane N,N-dimethylformamideHCID 22350042—
ProductHCID 3678472HCID 367847287%

Reaction Steps

Excess 3-Trifluoromethyl-benzenesulfonyl chloride and polystyrene-diisopropylethylamine resin (ca. 40 mg) were added to a 50 mM solution of 4-(2-keto-1-benzimidazolinyl)piperidine in methylene chloride-dimethyl formamide (9:1) (1 mL). The mixture was shaken 18 hours then scavenged with polystyrene-trisamine resin (ca. 33 mg) for another 18 hours. The reaction was filtered and evaporated to give 1-[1-(3-Trifluoromethyl-benzenesulfonyl)-piperidin-4-yl]-1,3-dihydro-benzoimidazol-2-one (18.6 mg, 87%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07244744B2
Source datasetuspto-grants-2007_07
ORD IDord-b1cb9494548e464d8ce23414e25020fa
Source noteuspto-grants-2007_07