HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1658347Generated: October 31, 2026
p-Toluenesulfonic acid → HCID 3504015, compound
https://huagongshe.com/reaction/1658347
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | p-Toluenesulfonic acid | HCID 6101 | — |
| Reactant | Ethyl 8-ethoxy-2H-[1,3]dioxolo[4,5-g]quinoline-7-carboxylate | HCID 12367717 | — |
| Solvent | Chloroform | HCID 6212 | — |
| Product | HCID 3504015 | HCID 3504015 | 5,655.1% |
Reaction Steps
A mixture of 2.9 g of ethyl 4-ethoxy-6,7-methylenedioxyquinoline 3-carboxylate and 0.03 g of p-toluenesulfonic acid was melted and heated at 180°C (bath temperature) for 2 hours and cooled. The product was dissolved in chloroform, washed with a dilute aqueous sodium carbonate solution and then with water. The chloroform layer was separated and evaporated to dryness. There was obtained 2.85 g of pure ethyl 1-ethyl-6,7-methylenedioxy-4-quinolone-3-carboxylate, m.p. 175°-177°C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US03963736 |
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| Source dataset | uspto-grants-1976_06 |
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| ORD ID | ord-6a7ae9df64314cb5add22245f5e2b62a |
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| Source note | uspto-grants-1976_06 |
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