HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
1-(4-Nitrophenyl)piperazine → 2,3-dihydro-7-methoxy-8-{3-[4-(4-nitrophenyl)-1-piperazinyl]propoxy}cyclopenta[c][1]benzopyran-4(1H)-one
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 1-(4-Nitrophenyl)piperazine | HCID 80447 | — |
| Edukt | Fumarate | HCID 5460307 | — |
| Edukt | 8-(3-chloropropoxy)-2,3-dihydro-7-methoxycyclopenta[c][1]benzopyran-4(1H)-one | HCID 19927690 | — |
| Lösungsmittel | Acetone | HCID 180 | — |
| Produkt | 2,3-dihydro-7-methoxy-8-{3-[4-(4-nitrophenyl)-1-piperazinyl]propoxy}cyclopenta[c][1]benzopyran-4(1H)-one | HCID 19927668 | 43% |
Reaktionsschritte
Method B (60 h at 50° C.); starting materials: 8-(3-chloropropoxy)-2,3-dihydro-7-methoxy-cyclopenta[c][1]benzopyran-4(1H)-one (example 83) and 1-(4-nitrophenyl)piperazine; yield 43%; fusion point 226°-228° C. (decomposes; from acetone). Fumarate: method E; yield 92%; fusion point 216° C. (decomposes; from acetone).
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05428038 |
| Quelldatensatz | uspto-grants-1995_06 |
| ORD ID | ord-4fbeac3717a44a1b98fa1cdb5f7bd5dd |
| Quellennotiz | uspto-grants-1995_06 |