HuagongsheHuagongshe Chemistry Print Report · For research reference only
Ethanol → Ethyl 3-(fur-2-yl)-3-oxopropanoate
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Ethanol | HCID 702 | — |
| Reactant | Diethyl Carbonate | HCID 7766 | — |
| Reactant | 2-Acetylfuran | HCID 14505 | — |
| Reactant | Sodium hydride | HCID 24758 | — |
| Solvent | Tetrahydrofuran | HCID 8028 | — |
| Product | Ethyl 3-(fur-2-yl)-3-oxopropanoate | HCID 2759240 | 60.6% |
Reaction Steps
Sodium hydride (4.4 grams) and 10.7 grams of diethyl carbonate are suspended in 60 ml of tetrahydrofuran and 10 grams of 2-acetylfuran is gradually added thereto by keeping the inner temperature at 40°to 50° C. A small amount of ethanol is added thereto, heated to reflux for three hours, and the reaction is made stopped by addition of 20 ml of ethanol. The mixture is poured into ice water, extracted with ether, the ether extracts are combined, washed with water, dried with anhydrous magnesium sulfate, and ether is evaporated therefrom. The resulting oil is purified by distilling in vacuo to give 10 grams of pale yellow oily product, b.p. 90° C./3 mmHg.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US04711898 |
| Source dataset | uspto-grants-1987_12 |
| ORD ID | ord-e606460048d245b2bc910732040c4650 |
| Source note | uspto-grants-1987_12 |