Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Water | HCID 962 | — |
| Reactant | Dimethylformamide | HCID 6228 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | tert-Butyl bromoacetate | HCID 79177 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Solvent | Sodium chloride; water | HCID 57417360 | — |
| Product | HCID 86605584 | HCID 86605584 | 88% |
Reaction Steps
To a solution of 5-hydroxy-2-(hydroxymethyl)-4H-pyranone (1 g) in N,N-dimethylformamide (20 mL) is added potassium carbonate (1.95 g) and tert-butyl bromoacetate (1.37 g) and the mixture is stirred at room temperature for 16 hours. The reaction mixture is diluted with tetrahydrofuran (10 mL), and thereto is added water and saturated brine. After stirring, the organic layer is separated and the aqueous layer is extracted with tetrahydrofuran. The organic layers are combined and washed with saturated brine, dried over anhydrous sodium sulfate, and filtered. The filtrate is concentrated and the residue is washed with diethyl ether and collected by filtration to give tert-butyl [[6-(hydroxymethyl)-4-oxo-4H-pyran-3-yl]oxy]acetate (1.49 g, yield; 88%) as a colorless powder. MS (ESI) m/z; 257 [M+H]+, M.p. 90-92° C.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US07384952B2 |
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| Source dataset | uspto-grants-2008_06 |
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| ORD ID | ord-b1183dd145474eabab86c86a16fbd3be |
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| Source note | uspto-grants-2008_06 |
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