HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
Resorcinol → 3,4-Dihydro-7-hydroxy-4-(1-naphthyl)coumarin
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | Resorcinol | HCID 5054 | — |
| Edukt | 3-(1-Naphthalenyl)-2-propenoic acid | HCID 98307 | — |
| Edukt | hydrochloric acid HCl | HCID 21225539 | — |
| Produkt | 3,4-Dihydro-7-hydroxy-4-(1-naphthyl)coumarin | HCID 20570522 | 64% |
Reaktionsschritte
Condensation of resorcinol with 3-(1-naphthyl)acrylic acid in the presence of hydrochloric acid/hydrogen chloride (method of J. D. Simpson and H. Stephen, J. Chem. Soc. (London) 1936, 1382) gave the desired dihydrocoumarin, m.p. 203.5-206.5, in 64% yield.
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US04153617 |
| Quelldatensatz | uspto-grants-1979_05 |
| ORD ID | ord-c262d31c0e0742bdbe30e8ce3a0ecc9a |
| Quellennotiz | uspto-grants-1979_05 |