反应详情

A mixture of 6-bromo-1-cyano-3-methyl-3H-dibenz[f,ij]isoquinoline-2,7-dione (2.0 g), p-aminophenylethanol (15 g), potassium acetate (2.0 g), a trace of cupric acetate, and butanol (10 ml) was heated gradually to about 80° C., held for 5-10 minutes, and then drained into 250 ml of 10% HCl. The solid product was collected by filtration, washed with water, dried in air, and recrystallized twice from nitrobenzene to remove a red impurity and traces of starting material. A yield of 0.65 g of product, which had a visible absorption maximum at 587 nm in acetone, was obtained, thus imparting a reddish-blue color to acetone. The structure is as follows: ##STR6##

1. filtrationThe solid product was collected by filtration
2. washwashed with water
3. customdried in air
4. customrecrystallized twice from nitrobenzene
5. customto remove a red impurity and traces of starting material
6. customwas obtained