Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Methyl Acrylate | HCID 7294 | — |
| Reactant | Tetramethoxysilane | HCID 12682 | — |
| Reactant | Cesium fluoride | HCID 25953 | — |
| Reactant | 3-bromo-4-[(2,4-difluorobenzyl)oxy]-6-methylpyridin-2(1H)-one | HCID 22050429 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 22050195 | HCID 22050195 | 93.3% |
Reaction Steps
3-bromo-4-[(2,4-difluorobenzyl)oxy]-6-methylpyridin-2(1H)-one (5.00 g, 17.85 mmol) and cesium fluoride (0.27 g, 1.78 mmol) were suspended in tetrahydrofuran (50 mL) followed by dropwise addition of tetramethylortho silicate (2.70 g, 17.85 mmol) at room temperature. After stirring for 10 minutes at room temperature, methyl acrylate (2.00 g, 23.20 mmol) was added dropwise and the reaction stirred at room temperature for 48 hours. The reaction mixture was filtered through a pad of Celite®. The filtrate was concentrated and the resulting residue subjected to chromatography (silica gel, ethyl acetate with 10% methanol/hexanes) to afford a white solid (6.10 g, 93%). 1H NMR (400 MHz, CDCl3) δ 7.42 (d, J=7.65 Hz, 1H), 7.41-7.29 (m, 5H), 6.04 (d, J=7.65 Hz, 1H), 5.20 (s, 2H), 4.17 (t, J=5.91 Hz, 2H), 3.63 (s, 3H), 2.85 (t, J=5.91 Hz, 2H). ES-HRMS m/z 366.0350 (M+H C16H16BrNO4 requires 366.0335).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07629363B2 |
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| Source dataset | uspto-grants-2009_12 |
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| ORD ID | ord-9457f9473af6496c8076fd387dec9675 |
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| Source note | uspto-grants-2009_12 |
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