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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2120195Generated: October 26, 2026

Piperidine → HCID 69883696, compound

https://huagongshe.com/reaction/2120195

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant6-Pyridin-3-yl-1,3-dihydro-indol-2-oneHCID 21915579—
Reactant4-Methoxy-3-(thiophen-2-yl)benzaldehydeHCID 21981024—
SolventEthanolHCID 702—
SolventDiethyl EtherHCID 3283—
ProductHCID 69883696HCID 6988369615%

Reaction Steps

A mixture of 6-pyridin-3-yl-1,3-dihydro-indol-2-one (100 mg, 0.5 mmol), 4-methoxy-3-thiophen-2-yl-benzaldehyde (110 mg, 0.5 mmol) and piperidine (0.23 mL) in ethanol (4 mL) was heated to reflux and stirred overnight. The reaction mixture was then cooled and diluted with ether to afford a precipitate which removed by filtration. Thefiltrate was column chromatographed (eluant—isopropanol/dichloromethane) to give 30 mg (15%) of 3-(4-methoxy-3-thiophen-2-yl-benzylidene)-6-pyridin-3-yl-1,3-dihydroindol-2-one as a yellow solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06689806B1
Source datasetuspto-grants-2004_02
ORD IDord-109e72eee4dd4152a9a69a299f59271f
Source noteuspto-grants-2004_02