Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1060767Generated: October 31, 2026

Hydrochloric Acid → HCID 57114484, compound

https://huagongshe.com/reaction/1060767

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPiperidineHCID 8082—
Reactant5-Methoxyindan-1-oneHCID 78787—
ReactantOxindoleHCID 321710—
SolventDimethylformamideHCID 6228—
ProductHCID 57114484HCID 571144842.3%

Reaction Conditions

Temperature130 °C

Reaction Steps

A mixture of 0.5 g 5-methoxy-1-indanone, 1.23 g oxindole and 2.7 ml piperidine in 4 ml dimethylforamide was heated in a sealed tube at 130° C. for 3 days to yield a greenish-black suspension. The mixture was added to 1N hydrochloric acid solution and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate and concentrated. Chromatography afforded 20 mg of 3-(5-methoxyindan-1-ylidene)-1,3-dihydroindol-2-one as a brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06525072B1
Source datasetuspto-grants-2003_02
ORD IDord-79e62b7a3cd142e4b9fa78e4d9862c3f
Source noteuspto-grants-2003_02