Hydrochloric Acid → HCID 70009302, Verbindung
Reaktionsgleichung
[CH2:1]([O:3][C:4]1[C:8]([CH2:9][N:10]2C(=O)C3=CC=CC=C3C2=O)=[C:7]([C:21]([O:23]CC)=[O:22])[O:6][N:5]=1)[CH3:2].[ClH:26]>[OH-].[Na+]>[ClH:26].[NH2:10][CH2:9][C:8]1[C:4]([O:3][CH2:1][CH3:2])=[N:5][O:6][C:7]=1[C:21]([OH:23])=[O:22]Komponenten
4
Edukt 2
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A solution of ethyl 3-ethoxy-4-phthalimidomethylisoxazole-5-carboxylate in 1 M NaOH was boiled under reflux for 45 min. The mixture was cooled, added concd HCl and extracted with diethylether (3×400 ml). The organic extracts were concentrated in vacuo, added 1 M HCl (600 mL) and boiled under reflux for 1 h. After cooling the mixture was washed with diethylether (3×600 mL) and concentrated in vacuo to give a crude product which was recrystallized (acetic acid) to yield the title compound (1.5 g, 82%): mp 215-216° C. (dec).