Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Hydrochloric Acid | HCID 313 | — |
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | HCID 57436868 | HCID 57436868 | — |
| Solvent | Acetone | HCID 180 | — |
| Solvent | Water | HCID 962 | — |
| Product | HCID 57436867 | HCID 57436867 | 80.4% |
Reaction Steps
To a solution containing 2-mercapto-3-methyl-chromen-4-one (2.26 g, 11.76 mmol) and potassium carbonate (1.62 g, 11.76 mmol) in acetone (120 mL) was added iodomethane (807 μL, 12.93 mmol). The reaction stirred under nitrogen atmosphere at room temperature for 16 hours before being concentrated to yield a crude oil. The residue was taken up in water and adjusted to pH 7 with 5% HCl. The resulting aqueous layer was washed with ethyl acetate. The the organic layer was then washed with water and brine, dried over sodium sulfate, filtered, and concentrated to obtain the desired product as a yellow solid (1.95 g, 80% yield), which was taken on to the next step without further purification. 1H NMR (600 MHz, CDCl3): δ 8.21 (d, 1H, J=6.6 Hz), 7.61 (m, 1H), 7.38 (m, 2H), 2.66 (s, 3H), 2.09 (s, 3H).
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07485283B2 |
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| Source dataset | uspto-grants-2009_02 |
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| ORD ID | ord-113ba621e48948e197926f8aa9b0212d |
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| Source note | uspto-grants-2009_02 |
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