Acetic Anhydride → 1-(4-Acetoxy-3-carboxyphenyl)-2-phenyl-4,5,6,7-tetrahydroindole
Reaktionsgleichung
[C:1]([C:4]1[CH:5]=[C:6]([N:11]2[C:19]3[CH2:18][CH2:17][CH2:16][CH2:15][C:14]=3[CH:13]=[C:12]2[C:20]2[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=2)[CH:7]=[CH:8][C:9]=1[OH:10])([OH:3])=[O:2].[C:26](OC(=O)C)(=[O:28])[CH3:27].O1CCCC1>O>[C:26]([O:10][C:9]1[CH:8]=[CH:7][C:6]([N:11]2[C:19]3[CH2:18][CH2:17][CH2:16][CH2:15][C:14]=3[CH:13]=[C:12]2[C:20]2[CH:21]=[CH:22][CH:23]=[CH:24][CH:25]=2)=[CH:5][C:4]=1[C:1]([OH:3])=[O:2])(=[O:28])[CH3:27]Komponenten
5
Edukt 3
Produkt 1
Reagenzien, Katalysatoren, Lösungsmittel 1
Versuchsvorschrift
A mixture of 25.0 g. (0.075 mole) of 1-(3-carboxy-4-hydroxyphenyl)-2-phenyl-4,5,6,7-tetrahydroindole and 225 g. (2.25 mole) of acetic anhydride was heated under reflux for 3 hours, diluted with 200 ml. of tetrahydrofuran, and poured into 3 l. of water. An oil separated and slowly solidified. Recrystallization from acetic acid gave a tan solid, m.p. 155°-162°.