反应详情

温度

110 °C

8-Chloro-3,4-dihydro-1H-benzo[b]azepine-2,5-dione (iv-j) (500 mg, 2.4 mmol) was combined with K2CO3 (660 mg, 4.8 mmol) under an atmosphere of argon. Phenylbromide (370 mg, 2.4 mmol) and N,N′-Dimethyl-ethane-1,2-diamine (21 mg, 0.24 mmol, 10 mol %) were added, followed by 10 mL of toluene. The mixture was degassed with an argon sparge for 10 min. CuI (23 mg, 0.12 mmol, 5 mol %) was added and the reaction was heated to 110° C. for 48 h. The mixture was filtered and volatiles removed in vacuo. Chromatographic purification provided the desired product contaminated with 10% 8-chloro-3,4-dihydro-1H-benzo[b]azepine-2,5-dione (172 mg, 34%) MS m/z=286 (M+1).

1. customThe mixture was degassed with an argon
2. customsparge for 10 min
3. filtrationThe mixture was filtered
4. customvolatiles removed in vacuo
5. customChromatographic purification