HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Water → 2-(1-Methyl-1H-pyrazol-4-yl)ethanol
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Water | HCID 962 | — |
| Edukt | Methyl iodide | HCID 6328 | — |
| Edukt | Potassium Hydroxide | HCID 14797 | — |
| Edukt | 2-(1H-Pyrazol-4-yl)ethanol | HCID 4293604 | — |
| Lösungsmittel | Ethanol | HCID 702 | — |
| Produkt | 2-(1-Methyl-1H-pyrazol-4-yl)ethanol | HCID 17028076 | — |
Reaktionsschritte
To a solution cooled (0° C.) of 2-(1H-pyrazol-4-yl)ethanol (93 g, 0.83 mol) and potassium hydroxide (48.8 g, 0.87 mol) in absolute ethanol (9.25 L) was added methyl iodide (178 g, 1.25 mol) dropwise. The mixture was allowed to react for 30 min, at which time it was poured into water (400 mL) and extracted with diethyl ether (4×100 mL). The combined organic layers were dried (Na2SO4), filtered, concentrated in vacuo, and purified by vacuum distillation to afford the title compound.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US08367706B2 |
| Quelldatensatz | uspto-grants-2013_02 |
| ORD ID | ord-925e031597ef44eda47f838e3ea4011f |
| Quellennotiz | uspto-grants-2013_02 |