Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Chloride | HCID 5234 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Isovanillin | HCID 12127 | — |
| Reactant | 2-Fluoroethyl bromide | HCID 12982 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 54769115 | HCID 54769115 | 97% |
Reaction Steps
To a solution of 3-hydroxy-4-methoxy-benzaldehyde (10.0 g, 66.0 mmol, 1.0 equiv) in anhydrous DMF (40 mL) was added K2CO3 (13.6 g, 99.0 mmol, 1.5 equiv) and 1-bromo-2-fluoro-ethane (9.2 mg, 72.0 mmol, 1.1 equiv) and the mixture stirred at rt for 48 h. The K2CO3 was removed by filtration and the organic phase concentrated under reduced pressure. To the crude reaction mixture was added a conc. solution of sodium chloride (100 mL) and the solution extracted with ethyl acetate (3×100 mL). The combined organic phases were dried over MgSO4 and the product crystallized from a mixture of isopropanol/diethylether to yield 12.69 g (97%) of the title compound. 1H NMR (300 MHz, DMSO): δ 3.89 (1H), 4.24-4.27 (m, 1H), 4.34-4.37 (m, 1H), 4.67-4.70 (m, 1H), 4.83-4.86 (m, 1H), 7.20 (d, J=8.4 Hz, 1H), 7.43 (d, J=1.9 Hz, 1H), 7.59 (dd, J=8.4 Hz, J=1.9 Hz, 1H), 9.84 (s, 1H). MS (ISP): 198.6 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07645753B2 |
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| Source dataset | uspto-grants-2010_01 |
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| ORD ID | ord-ca08ea2b995345428b73daad9fe97682 |
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| Source note | uspto-grants-2010_01 |
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