HuagongsheHuagongshe Chemistry Print Report · For research reference only
Water → HCID 59355980, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Methyl iodide | HCID 6328 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | HCID 67484805 | HCID 67484805 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | HCID 59355980 | HCID 59355980 | 72% |
Reaction Steps
A solution of 5-(1-ethyl-1-hydroxymethyl-propyl)-thiophene-2-carboxylic acid (0.750 g, 3.28 mmol) in DMF (16.0 mL) is treated with K2CO3 (0.684 g, 6.00 mmol), iodomethane (0.27 mL, 4.34 mmol), and stirred at rt overnight. The mixture is poured into H2O (30 mL) and extracted with EtOAc (3×30 mL). The combined extracts are washed with H2O, brine, dried over MgSO4, filtered, and concentrated. The residue is loaded onto silica gel and eluted with hexanes using a gradient of 0% to 75% EtOAc to give 5-(1-ethyl-1-hydroxymethyl-propyl)-thiophene-2-carboxylic acid methyl ester (0.571 g, 72%) as a clear syrup. MS (ES): 243.2 [M+H]+.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08084489B2 |
| Source dataset | uspto-grants-2011_12 |
| ORD ID | ord-a6003d5dde404144b0da55033520b89d |
| Source note | uspto-grants-2011_12 |