Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Triethylamine | HCID 8471 | — |
| Reactant | 4-Fluorobenzylamine | HCID 67326 | — |
| Reactant | 2,3,4-Trifluoro-6-nitroaniline | HCID 2775763 | — |
| Catalyst | Iodine | HCID 807 | — |
| Solvent | Dimethyl Sulfoxide | HCID 679 | — |
| Product | HCID 86700479 | HCID 86700479 | 69.5% |
Reaction Steps
To a stirred suspension of compound 2 (0.060 g, 0.31 mmol, 1.0 equiv) in dry DMSO (0.3 mL) was added 4-fluorobenzylamine (0.117 g, 0.940 mmol, 3.00 equiv) followed by Et3N (54.0 μL, 0.370 mmol, 1.20 equiv) and I2 (catalytic, 1.0 mg). The reaction mixture was heated to 120° C. and stirred at 120° C. for 16 h. After consumption of the starting material (by TLC), the reaction mixture was cooled to RT, diluted with water (25 mL) and extracted with EtOAc (2×50 mL). The separated organic layer was dried over anhydrous Na2SO4, filtered and concentrated under reduced pressure to give crude; which was purified by silica gel column chromatography (EtOAc/Hexane 2:23) to afford compound 3 (0.064 g, 69%) as yellow solid. TLC: 25% EtOAc/Hexane (Rf: 0.20); 1H NMR (400 MHz, CDCl3): δ 7.67 (dd, J=2.0, 12.8 Hz, 1H), 7.31-7.28 (m, 2H), 7.05 (t, J=6.8 Hz, 2H), 6.05 (br s, 2H, Exc), 4.63 (d, J=6.0 Hz, 2H), 4.53 (br s, 1H, Exc); LC-MS: m/z=296 (M+-1) at RT 3.64 (98.8% purity)
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08916133B2 |
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| Source dataset | uspto-grants-2014_12 |
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| ORD ID | ord-cb57a936d3d1408d90646b4bdf21f995 |
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| Source note | uspto-grants-2014_12 |
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