Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Acetic Acid | HCID 176 | — |
| Reactant | Diethyl Carbonate | HCID 7766 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Reactant | HCID 24697475 | HCID 24697475 | — |
| Solvent | Water | HCID 962 | — |
| Solvent | Toluene | HCID 1140 | — |
| Product | HCID 58550541 | HCID 58550541 | 64% |
Reaction Steps
A mixture of 1-[2-(tetrahydro-furan-2-ylmethoxy)-phenyl]-ethanone (2.22 g, 0.01 mol) and diethylcarbonat (10 mL, 0.083 mol) in anhydrous toluene (20 mL) was added dropwise to a suspension NaH (1.0 g, 0.025 mol) in anhydrous toluene (20 mL). After addition, the mixture refluxed for 2 h, cooled and poured slowly into a solution AcOH (3 mL) and water (50 mL). After separated the organic layer, the aqueous layer was extracted with ethyl acetate (2×50 mL). Organic layers were combined, washed with water (20 mL), then dried over anhydrous sodium sulfate and concentrated. The residue was purified by flash chromatography on silica gel (eluent hexane-ethylacetate, 1:5) to obtain 1.85 g (64%) 3-oxo-3-[2-(tetrahydro-furan-2-ylmethoxy)-phenyl]-propionic acid ethyl ester as yellow oil.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|
| Patent number | US08507498B2 |
|---|
| Source dataset | uspto-grants-2013_08 |
|---|
| ORD ID | ord-5d0bfafedf7c4f7d9acb9e4c3f1e042c |
|---|
| Source note | uspto-grants-2013_08 |
|---|