Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1243459Generated: October 31, 2026

Piperidine → HCID 69032764, compound

https://huagongshe.com/reaction/1243459

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPiperidineHCID 8082—
Reactant3-(5-formyl-2,4-dimethyl-1H-pyrrol-3-yl)propanoic AcidHCID 1512520—
Reactant4-Methyl-1,3-dihydro-2H-indol-2-oneHCID 12579382—
SolventEthanolHCID 702—
ProductHCID 69032764HCID 6903276437%

Reaction Steps

3-(2-Carboxyethyl)-2,4-dimethyl-5-formylpyrrole (97.5 mg), 74 mg 4-methyl-2-oxindole, and 75 μL piperidine in 3 mL of ethanol were heated at 95° C. for 5 hours. The reaction mixture was cooled and concentrated. The residue was suspended in 6 N of aqueous hydrochloric acid. The precipitate was filtered, washed with water to pH 6 and dried in a vacuum oven overnight to give 60 mg (37%) of the title compound as a green solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07119090B2
Source datasetuspto-grants-2006_10
ORD IDord-2606008913774b8aa93fee2ef680a43c
Source noteuspto-grants-2006_10