Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | 4-Amino-3-fluorophenol | HCID 2735919 | — |
| Reactant | 4-Chloro-2-methoxypyridine | HCID 22638510 | — |
| Reactant | Potassium tert-butoxide | HCID 23665647 | — |
| Solvent | Dimethylacetamide | HCID 31374 | — |
| Product | HCID 67253413 | HCID 67253413 | 58% |
Reaction Steps
A solution of 4-amino-3-fluorophenol (0.20 g, 1.6 mmol) in 4 mL of anhydrous DMA was treated with potassium tert-butoxide (0.24 g, 1.9 mmol). The resultant dark-red solution was stirred at RT for 1 hour in a capped vial. 4-Chloro-2-methoxypyridine (0.26 g, 1.6 mmol) was added and the reaction mixture was heated overnight at 100° C. Water (50 mL) was added and the solution was extracted with ethyl acetate (3×50 mL). The combined organic layers were washed with brine, dried (Na2SO4), concentrated in vacuo and purified by silica gel column chromatography to obtain 2-fluoro-4-(2-methoxypyridin-4-yloxy)benzenamine (0.20 g, 58% yield). 1H NMR (400 MHz, DMSO-d6) δ 8.02 (d, J=6.0 Hz, 1H), 6.95 (dd, J=2.8, 12.0 Hz, 1H), 6.82 (dd, J=8.4, 8.8 Hz, 1H), 6.73 (dd, J=2.0, 8.4 Hz, 1H), 6.54 (dd, J=2.4, 6.0 Hz, 1H), 6.10 (d, J=2.4 Hz, 1H), 5.17 (s, 1H), 3.81 (s, 3H); MS (ESI) m/z: 235.0 (M+H+).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07790756B2 |
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| Source dataset | uspto-grants-2010_09 |
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| ORD ID | ord-dcd3e618395643c68068c9c2150ce687 |
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| Source note | uspto-grants-2010_09 |
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