Potassium Hydroxide → 2,5-Dimethoxy acridine-9-carboxylic acid
Reaction equation
[CH3:1][O:2][C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[N:9]1[C:19]2[C:14](=[CH:15][C:16]([O:20][CH3:21])=[CH:17][CH:18]=2)[C:12](=O)[C:10]1=[O:11].[OH-:22].[K+]>O>[CH3:21][O:20][C:16]1[CH:17]=[CH:18][C:19]2[C:14](=[C:12]([C:10]([OH:22])=[O:11])[C:5]3[C:4]([N:9]=2)=[C:3]([O:2][CH3:1])[CH:8]=[CH:7][CH:6]=3)[CH:15]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
The crude isatin derivative from step (a) was refluxed in 60 mL of 10% potassium hydroxide in water for 4 hours. The reaction was then cooled to room temperature and filtered. The filtrate was acidified with a mixture of concentrated hydrochloric acid and ice until a dark precipitate separated out. The product was collected by filtration and dried under vacuum. Yield=0.32 g (10%).