HuagongsheHuagongshe Chemie-Druckbericht · Nur für Forschungszwecke
3,4-dihydro-2H-pyran → 2H-Pyran, tetrahydro-2-[4-(trifluoromethyl)phenoxy]-
Beteiligte Stoffe
| Rolle | Name | HCID | Einwaage |
|---|---|---|---|
| Edukt | 3,4-dihydro-2H-pyran | HCID 8080 | — |
| Edukt | 4-(Trifluoromethyl)phenol | HCID 67874 | — |
| Lösungsmittel | Hydrochloric Acid | HCID 313 | — |
| Lösungsmittel | Dichloromethane | HCID 6344 | — |
| Produkt | 2H-Pyran, tetrahydro-2-[4-(trifluoromethyl)phenoxy]- | HCID 11357015 | 133,3% |
Reaktionsschritte
A solution of 4-(Trifluoromethyl)-phenol (40 g) in dichloromethane (100 ml) was added at 0° C. dropwise to a solution of dihydropyran (53 g) in dichloromethane (100 ml) and aqueous HCl (200 μl) The reaction was allowed to reach room temperature, then quenched with saturated sodium bicarbonate (×1). The organic layer was separated and dried (MgSO4), concentrated in vacuo to give the sub-title compound (81 g)
Herkunft & Nachweise
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patentnummer | US08524715B2 |
| Quelldatensatz | uspto-grants-2013_09 |
| ORD ID | ord-974d465cc163410786a446a46acbbc0e |
| Quellennotiz | uspto-grants-2013_09 |