HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Potassium Iodide → Ethyl 3,5-dimethyl-4-(3-ethynylpropoxy)benzoate
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Potassium Iodide | HCID 4875 | — |
| Edukt | Potassium Hydroxide | HCID 14797 | — |
| Edukt | 1-Pentyne, 5-chloro- | HCID 84308 | — |
| Edukt | Ethyl 3,5-dimethyl-4-hydroxybenzoate | HCID 3027494 | — |
| Lösungsmittel | Acetonitrile | HCID 6342 | — |
| Produkt | Ethyl 3,5-dimethyl-4-(3-ethynylpropoxy)benzoate | HCID 15057290 | 86% |
Reaktionsschritte
A suspension of 6.42 g ethyl 3,5-dimethyl-4-hydroxybenzoate, 5.5 g potassium iodide, 3.7 g 1-chloro-4-pentyne and 2.3 g powdered potassium hydroxide in 650 ml acetonitrile was heated at reflux under nitrogen for 16 hrs. The mixture was filtered, concentrated in vacuo and subjected to flash filtration (silica gel, 4:1 hexane/ethyl acetate) to give 7.4 g ethyl 3,5-dimethyl-4-(3-ethynylpropoxy)benzoate as a yellow oil.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05175178 |
| Quelldatensatz | uspto-grants-1992_12 |
| ORD ID | ord-9796020021f64d6cba3189ebc17902fe |
| Quellennotiz | uspto-grants-1992_12 |