反应详情

A mixture of 2-chloroquinazoline (0.62 g, 2.6 mmol) and 5-amino-2-(2,6-dimethylphenyl)isoindoline-1,3-dione (0.69 g, 2.6 mmol) in n-butanol (10 mL) was heated at 120° C. until all of the butanol had evaporated. Additional butanol (10 mL) was added and the process repeated twice. After the reaction mixture was cooled, water was added (20 mL). A precipitate which formed was collected by suction filtration. N,N-Dimethylacetamide (5 mL) was added to dissolve the solid which was purified by preparative reverse-phase HPLC to give 2-(2,6-dimethylphenyl)-5-[(4-phenylquinazolin-2-yl)amino]-1H-isoindole-1,3(2H)-dione (0.26 g, 21%). 1H NMR (400 MHz, DMSO-d6): δ 10.88 (s, 1H), 8.80 (m, 1H), 8.42 (m, 1H), 7.96 (m, 1H), 7.90 (m, 2H), 7.85 (m, 1H), 7.81 (m, 2H), 7.65 (m, 3H), 7.50 (m, 1H), 7.32 (m, 1H), 7.25 (m, 2H), 2.10 (s, 6H). MS (EI) for C30H22N4O2: 471.0 (MH+).

1. customhad evaporated
2. additionAdditional butanol (10 mL) was added
3. temperatureAfter the reaction mixture was cooled
4. additionwater was added (20 mL)
5. customA precipitate which formed
6. filtrationwas collected by suction filtration
7. additionN,N-Dimethylacetamide (5 mL) was added
8. dissolutionto dissolve the solid which
9. customwas purified by preparative reverse-phase HPLC