HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
2-Chloronicotinic acid → 2-{4-[2-(2-Hydroxy ethoxy)ethyl]piperazin-1-yl}nicotinic acid
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 2-Chloronicotinic acid | HCID 76258 | — |
| Edukt | 1-[2-(2-Hydroxyethoxy)ethyl]piperazine | HCID 139436 | — |
| Lösungsmittel | 1,4-Dioxane | HCID 31275 | — |
| Produkt | 2-{4-[2-(2-Hydroxy ethoxy)ethyl]piperazin-1-yl}nicotinic acid | HCID 20032014 | — |
Reaktionsschritte
Grams 5.9 of 1-(2-hydroxyethoxyethyl)piperazine and 2.7 g of 2-chloronicotinic acid in 50 ml dioxane were refluxed for 3 days. The reaction mixture was then cooled and allowed to rest for 2 days, afterwards the solvent was removed and the residue crystallized from absolute ethanol, gave 1.1 g of 2-{4-[2-(2-hydroxy ethoxy)ethyl]piperazin-1-yl}nicotinic acid melting at 172°-174° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04849422 |
| Quelldatensatz | uspto-grants-1989_07 |
| ORD ID | ord-3a6e8d7cf8b340888fd9d3b28157e5fc |
| Quellennotiz | uspto-grants-1989_07 |