Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | HCID 72295607 | HCID 72295607 | — |
| Reactant | Butyllithium | HCID 178418339 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | HCID 11514254 | HCID 11514254 | 12.5% |
Reaction Steps
1-(1-Ethyl-6-methoxy-1-H-indole-3-yl)ethanone oxime (100 mg, 0.43 mmol) was dissolved in THF (900 μL) at 0° C. n-BuLi (450 μL, 2.5 M in hexanes, 1.12 mol) was added dropwise, resulting in instant precipitation of solids. DMF (70 μL, 0.9 mol) in 260 μL of was then added dropwise. This was stirred at 0° C. for 1 h, then at room temperature for 1 h. The reaction mixture was pipetted into a mixture containing 1 mL of H2O, 1 mL of THF, and 100 μL of concentrated H2 SO4. This mixture was heated at 75° C. for 1 h and then was partitioned between H2O and EtOAc. The organic phase was dried and concentrated. Purification by column chromatography (CH2Cl2) yielded 1-ethyl-3-isoxazol-3-yl-6-methoxy-1-H-indole product as a white solid (13 mg, 12%).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08013006B2 |
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| Source dataset | uspto-grants-2011_09 |
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| ORD ID | ord-ea24eaca5e4444d6a71c19361ef7d305 |
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| Source note | uspto-grants-2011_09 |
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