HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 634640Generated: October 30, 2026
Hydrochloric Acid → HCID 21260392, compound
https://huagongshe.com/reaction/634640
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | HCID 21260383 | HCID 21260383 | — |
| Reactant | Pyridinium hydrochloride | HCID 21584435 | — |
| Product | HCID 21260392 | HCID 21260392 | 86.2% |
Reaction Steps
A neat mixture of crude 4-(5-chloro-2-methoxyphenyl)-1,2-dihydro-2-oxo-6-(trifluoromethyl)-3-quinolineacetic acid prepared in Step C (1.45 g, 3.5 mmol) and pyridinium hydrochloride (5 g, 43.3 mmol) was heated at 185° C. for 3 hours. Reaction mixture was allowed to cool and 1N HCl was added and then extracted with EtOAc to afford the title compound (1.20 g, 86%): mp 158-160° C.;
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US06184231B2 |
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| Source dataset | uspto-grants-2001_02 |
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| ORD ID | ord-3c75ff5111e84d9b9a169bbba751edc1 |
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| Source note | uspto-grants-2001_02 |
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