Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Benzocaine | HCID 2337 | — |
| Reactant | Methanesulfonic Acid | HCID 6395 | — |
| Reactant | HCID 86718153 | HCID 86718153 | — |
| Solvent | Diphenyl Ether | HCID 7583 | — |
| Product | HCID 178468668 | HCID 178468668 | 62.2% |
Reaction Steps
Methyl 2,3-bis(4-methoxyphenyl)-3-oxopropanoate (1.3 g, 4.14 mmol, 1.00 equiv), ethyl 4-aminobenzoate (680 mg, 4.12 mmol, 1.00 equiv), CH3SO3H (118 mg, 1.23 mmol, 0.30 equiv), and Ph2O (20 mL) were placed in a 100-mL round-bottom flask stirred for 1 h at 90° C., then at 180° C. for 3 h, in an oil bath. Upon cooling, 100 ml of petroleum ether was added. The resulting solid was collected by filtration and dried in a vacuum oven, affording 1.1 g (crude) of ethyl 4-hydroxy-2,3-bis(4-methoxyphenyl)quinoline-6-carboxylate as a brown solid.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09370522B2 |
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| Source dataset | uspto-grants-2016_06 |
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| ORD ID | ord-5b5e6e573ced438d9df1f5bd98157081 |
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| Source note | uspto-grants-2016_06 |
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