HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Piperidine → 4-[(3,4-Dihydroxy-5-cyanophenyl)methylidene]-2-thioxoimidazolidin-5-one
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Piperidine | HCID 8082 | — |
| Edukt | 2-Thiohydantoin | HCID 1274030 | — |
| Edukt | 5-Formyl-2,3-dihydroxybenzonitrile | HCID 15292583 | — |
| Lösungsmittel | Acetic Acid | HCID 176 | — |
| Produkt | 4-[(3,4-Dihydroxy-5-cyanophenyl)methylidene]-2-thioxoimidazolidin-5-one | HCID 54390461 | — |
Reaktionsbedingungen
| Temperatur | 100 °C |
|---|
Reaktionsschritte
A solution containing 0.58 g of thiohydantoin, 0.82 g of 3,4-dihydroxy-5-cyanobenzaldehyde and 0.1 ml of piperidine in 10 ml of acetic acid was heated for 4 h at 100° C. The product was filtered and washed with ether. Yield 0.51 g, mp 210°-213° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US05614541 |
| Quelldatensatz | uspto-grants-1997_03 |
| ORD ID | ord-9a48546ee4fd456493cbf86ab7ca7bd5 |
| Quellennotiz | uspto-grants-1997_03 |