HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Pyrazole, 3-amino-4-cyano-5-ethyl- → 2-Ethyl-7-phenylpyrazolo[1,5-a]pyrimidine-3-carbonitrile
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Pyrazole, 3-amino-4-cyano-5-ethyl- | HCID 114021 | — |
| Edukt | 3-(Dimethylamino)-1-phenyl-2-propen-1-one | HCID 353460 | — |
| Lösungsmittel | Acetic Acid | HCID 176 | — |
| Produkt | 2-Ethyl-7-phenylpyrazolo[1,5-a]pyrimidine-3-carbonitrile | HCID 23329865 | — |
Reaktionsschritte
A mixture of 0.71 g. of 3-dimethylaminoacrylophenone, 15 ml. of glacial acetic acid and 0.55 g. of 3-amino-5-ethylpyrazole-4-carbonitrile is refluxed for 16 hours and then evaporated. The residue is treated as described in Example 1, giving the desired product, m.p. 132°-134° C.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04178449 |
| Quelldatensatz | uspto-grants-1979_12 |
| ORD ID | ord-ca9daee4c3974a29afd4eba32c3c6c7f |
| Quellennotiz | uspto-grants-1979_12 |