Hydrochloric Acid → 5-tert-Butylpyrogallol
Reaktionsgleichung
C[O:2][C:3]1[CH:8]=[C:7]([C:9]([CH3:12])([CH3:11])[CH3:10])[CH:6]=[C:5]([O:13]C)[C:4]=1[OH:15].Cl.N1C=CC=CC=1.Cl>>[C:9]([C:7]1[CH:8]=[C:3]([OH:2])[C:4]([OH:15])=[C:5]([CH:6]=1)[OH:13])([CH3:12])([CH3:10])[CH3:11]Komponenten
4
Versuchsvorschrift
2,6-Dimethoxy-4-t-butylphenol (16.5 g, 0.08 mole) and pyridine hydrochloride (60 g) were heated at 200°-210° C. for 2 hours. The mixture was then added to iced dilute hydrochloric acid and the aqueous solution extracted twice with petroleum ether (b.p. 40°-60° C.) to remove any unchanged starter. The aqueous phase was saturated with salt and extracted three times with ether. Drying and running down gave 12.5 g title product (88%) m.p. 137°-9° C.
Aufarbeitung
- extractionthe aqueous solution extracted twice with petroleum ether (b.p. 40°-60° C.)
- customto remove any unchanged starter
- extractionextracted three times with ether
- customDrying
Quellen und Nachweise
- ORD-Eintrag
- ord-8777e22a4f2b446fa7ee3d6224e4a6c3
- Quelldatensatz
- uspto-grants-1979_10
- Patentnummer
- US04172960
Notizen zur Reaktion
Wird geladen…