HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
3-Methylbenzyl alcohol → (3-Methylbenzyloxy)acetic Acid Ethyl Ester
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 3-Methylbenzyl alcohol | HCID 11476 | — |
| Edukt | Ethyl diazoacetate | HCID 12192 | — |
| Katalysator | Acetic acid, rhodium salt (4:2) | HCID 423677 | — |
| Lösungsmittel | Dichloromethane | HCID 6344 | — |
| Lösungsmittel | Heptane | HCID 8900 | — |
| Produkt | (3-Methylbenzyloxy)acetic Acid Ethyl Ester | HCID 68569289 | 101,9% |
Reaktionsschritte
To a solution of 3-methylbenzyl alcohol (1.08 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 150° C. to give 1.91 g of the product 396. 1H NMR (CDCl3) δ 7.3-7.1 (m, 4H), 4.60 (s, 2H), 4.23 (q, 2H), 4.09 (s, 2H), 2.36 (s, 3H), 1.29 (t, 311); MS: m/z 209 (M++1).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US07741493B2 |
| Quelldatensatz | uspto-grants-2010_06 |
| ORD ID | ord-5290beb9104f4659ac77188b00c8bd54 |
| Quellennotiz | uspto-grants-2010_06 |