Hydrochloric Acid → 3,5-Diamino-4-hydroxybenzoic acid dihydrochloride
Reaktionsgleichung
[NH2:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([NH2:12])[C:10]=1[OH:11])[C:5]([OH:7])=[O:6].[ClH:13]>>[ClH:13].[ClH:13].[NH2:1][C:2]1[CH:3]=[C:4]([CH:8]=[C:9]([NH2:12])[C:10]=1[OH:11])[C:5]([OH:7])=[O:6]Komponenten
3
Versuchsvorschrift
3,5-Diamino-4-hydroxybenzoic acid (2 g, 11.9 mmole) was dissolved in 6N hydrochloric acid (50 ml) and refluxed for 2 hours. The mixture was evaporated to dryness and the residue was treated with ethyl acetate (50 ml), filtered and dried to give 3,5-diamino-4-hydroxybenzoic acid dihydrochloride (2.58 g, 90%), m.p. 260°-262° C. (dec.) (lit. ref., Chemical Abstracts, 1908, 2379, m.p. 260° C. (dec)).
Aufarbeitung
- temperaturerefluxed for 2 hours
- customThe mixture was evaporated to dryness
- additionthe residue was treated with ethyl acetate (50 ml)
- filtrationfiltered
- customdried
Quellen und Nachweise
- ORD-Eintrag
- ord-062adf94a77b4aec92be6e88e155f82a
- Quelldatensatz
- uspto-grants-1996_05
- Patentnummer
- US05514676
Notizen zur Reaktion
Wird geladen…