Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Pyridine | HCID 1049 | — |
| Reactant | Methyl 4-aminobenzoate | HCID 12082 | — |
| Reactant | 2-Fluoro-4-(trifluoromethyl)benzoyl chloride | HCID 145580 | — |
| Solvent | Dichloromethane | HCID 6344 | — |
| Product | HCID 90314677 | HCID 90314677 | 84.3% |
Reaction Steps
A solution of 2-fluoro-4-(trifluoromethyl)benzoyl chloride (3 g, 13.24 mmol) in dichloromethane (27.6 mL) was added dropwise to a mixture of methyl 4-aminobenzoate (2.0 g, 13.24 mmol), pyridine (3.21 mL, 39.72 mmol) and dichloromethane (41.4 mL) at 0° C. The reaction was stirred and allowed to warm up to room temperature over 2 hours. To the reaction, water (30 mL) was added. The solid was isolated by filtration, washed with water (2×30 mL) and hexane (2×30 mL) to yield methyl 4-[[2-fluoro-4-(trifluoromethyl)benzoyl]amino]benzoate (3.811 g, 84%) as a white solid. ESI-MS m/z calc. 341.07, found 342.2 (M+1)+; Retention time: 1.64 minutes (3 minutes run). 1H NMR (400 MHz, DMSO-d6) δ 10.97 (s, 1H), 8.02-7.96 (m, 2H), 7.96-7.89 (m, 2H), 7.89-7.83 (m, 2H), 7.76 (dd, J=8.0, 1.6 Hz, 1H), 3.85 (s, 3H) ppm.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US09108903B2 |
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| Source dataset | uspto-grants-2015_08 |
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| ORD ID | ord-677b14579be4481482283b4c356d1fb6 |
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| Source note | uspto-grants-2015_08 |
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