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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 483504Generated: October 31, 2026

Phenyl isocyanate → HCID 19030819, compound

https://huagongshe.com/reaction/483504

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenyl isocyanateHCID 7672—
Reactant1-(piperidin-4-yl)-3,4-dihydroquinolin-2(1H)-oneHCID 10728185—
SolventDichloromethaneHCID 6344—
ProductHCID 19030819HCID 19030819—

Reaction Steps

1-(4-Piperidinyl)-3,4-dihydrocarbostyril (0.8 g) is dissolved in dichloromethane (20 ml) and thereto is added phenylisocyanate (0.57 ml) and the mixture is stirred at room temperature for 4 hours. The solvent is concentrated and the residue is purified by silica gel column chromatography (solvent; n-hexane:ethyl acetate=5:1) and recrystallized from n-hexane/ethanol to give 1-(1-anilinocarbonyl-4-piperidinyl)-3,4-dihydrocarbostyril (0.8 g), as white powder, m.p. 194°-196° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05225402
Source datasetuspto-grants-1993_07
ORD IDord-3e1b60be3412472bbfebd81483804768
Source noteuspto-grants-1993_07