HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Water → 1-(4-Methyl-5-oxazolyl)-1-(3-thienyl)ethanol
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Water | HCID 962 | — |
| Edukt | 3-Bromothiophene | HCID 13383 | — |
| Edukt | 1-(4-Methyloxazol-5-yl)ethanone | HCID 11029839 | — |
| Edukt | Butyllithium | HCID 178418339 | — |
| Lösungsmittel | Diethyl Ether | HCID 3283 | — |
| Produkt | 1-(4-Methyl-5-oxazolyl)-1-(3-thienyl)ethanol | HCID 18936324 | — |
Reaktionsschritte
3-Bromothiophene (4.23 g) in diethylether (10 ml) was added dropwise to n-butyllithium (2.5M solution in hexane, 10.4 ml) in dry diethylether (20 ml) at -70° C. under a nitrogen atmosphere. After 3 hours 5-acetyl-4-methyloxazole (2.5 g) in diethylether (10 ml) was added dropwise. After a further 2.5 hours at -70° C., the mixture was allowed to warm to room temperature and then left overnight. The mixture was poured into water and extracted with ether. The product thus obtained was crystallised from diethylether to give 1-(4-methyl-5-oxazolyl)-1-(3-thienyl)ethanol, m.p. 87°-89° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05731335 |
| Quelldatensatz | uspto-grants-1998_03 |
| ORD ID | ord-4d4da764b7ca493a80454e012df84e7d |
| Quellennotiz | uspto-grants-1998_03 |