Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Sodium Iodide | HCID 5238 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | 2-Bromoethyl ethyl ether | HCID 61141 | — |
| Reactant | Ethyl 3-hydroxy-4-methoxybenzoate | HCID 15480330 | — |
| Solvent | Acetonitrile | HCID 6342 | — |
| Product | HCID 68616983 | HCID 68616983 | — |
Reaction Steps
A mixture of 3-hydroxy-4-methoxy-benzoic acid ethyl ester (1.60 g, 8.16 mmol), 2-bromoethyl ethyl ether (1.38 mL, 12.2 mmol) and anhydrous K2CO3 (1.69 g, 12.2 mmol) in MeCN (35 mL) is refluxed overnight. In order to complete the reaction, an additional aliquot of 2-bromoethyl ethyl ether (1.38 mL, 12.2 mmol) and a catalytic amount of NaI are added, and reflux is continued overnight. After cooling, the mixture is filtered and the filtrates are concentrated. The residue is taken up in CH2Cl2, the organic layer is washed with 0.5M NaOH and water, dried (Na2SO4) and concentrated. The title compound is obtained after flash chromatography (hexane/AcOEt 8:2) as colorless oil. MS: 269.0 [M+H]+. tR (HPLC, Nucleosil C18HD column, 5-100% CH3CN/H2O/6 min, 100% CH3CN/2 min, CH3CN and H2O containing 0.1% TFA, flow: 1 mL/min): 4.92 min. 1H-NMR (CDCl3): δ 1.27 (m, 3H), 1.41 (m, 3H), 3.64 (m, 2H), 3.87 (m, 2H), 3.94 (s, 3H), 4.26 (m, 2H), 4.38 (m, 2H), 9.91 (dd, 1H), 7.63 (d, 1H), 7.72 (dd, 1H) ppm.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07807709B2 |
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| Source dataset | uspto-grants-2010_10 |
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| ORD ID | ord-e2bf7a1f456b4f8799e2029f7f791137 |
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| Source note | uspto-grants-2010_10 |
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