HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Tetrahydrofurfuryl alcohol → (Tetrahydrofuran-2-ylmethoxy)acetic Ethyl Ester
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Tetrahydrofurfuryl alcohol | HCID 7360 | — |
| Edukt | Ethyl diazoacetate | HCID 12192 | — |
| Katalysator | Acetic acid, rhodium salt (4:2) | HCID 423677 | — |
| Lösungsmittel | Dichloromethane | HCID 6344 | — |
| Lösungsmittel | Heptane | HCID 8900 | — |
| Produkt | (Tetrahydrofuran-2-ylmethoxy)acetic Ethyl Ester | HCID 43119675 | 60,2% |
Reaktionsschritte
To a solution of tetrahydrofurfuryl alcohol (1.02 g, 10.0 mmol) in dichloromethane (20 mL) is added rhodium (II) acetate dimer (10 mg) followed by ethyl diazoacetate (0.95 mL, 9.0 mmol). The reaction mixture is stirred at rt for 30 min. The reaction mixture is diluted with heptane, filtered through Celite, and the filtrate is evaporated and the residue is vacuum distilled at 130° C. to give 1.02 g of the product 477. 1H NMR (CDCl3) δ 4.11 (q, 2H), 4.10 (s, 2H), 3.93 (m, 1H), 3.72 (m, 1H), 3.61 (m, 1H), 3.44 (m, 2H), 1.95-1.75 (m, 3H), 1.61-1.53 (m, 1H), 1.20 (t, 3H).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US07741493B2 |
| Quelldatensatz | uspto-grants-2010_06 |
| ORD ID | ord-204f5de948154c3eb146710bb643fd31 |
| Quellennotiz | uspto-grants-2010_06 |