HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 478707Generated: October 30, 2026
Hydrochloric Acid → HCID 57114484, compound
https://huagongshe.com/reaction/478707
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Piperidine | HCID 8082 | — |
| Reactant | 5-Methoxyindan-1-one | HCID 78787 | — |
| Reactant | Oxindole | HCID 321710 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 57114484 | HCID 57114484 | 2.3% |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06642251B1 |
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| Source dataset | uspto-grants-2003_11 |
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| ORD ID | ord-32f44c8856794a7b8b00c5af817c096d |
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| Source note | uspto-grants-2003_11 |
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