反应详情

A solution of 8-bromo-1-methyl-5,6-dihydro-4H-benzo[b][1,2,4]triazolo[4,3-d][1,4]diazepine (50 mg, 0.17 mmol), 1-chloro-4-iodobenzene (82 mg, 0.34 mmol), Pd2(dba)3 (15 mg), 2-dicyclohexylphosphino-2′,6′-dimethoxybiphenyl (15 mg) and Cs2CO3 (110 mg, 0.34 mmol) in toluene (10 mL) was heated at 110° C. overnight. The reaction mixture was evaporated, water (10 mL) was added, extracted with ethyl acetate (20 mL), concentrated to give the crude product, which was purified by prep-TLC (DCM:MeOH=15:1) to afford 8-bromo-6-(4-chlorophenyl)-1-methyl-5,6-dihydro-4H-benzo[b][1,2,4]triazolo[4,3-d][1,4]diazepine (14 mg, yield 20%).

1. customThe reaction mixture was evaporated
2. additionwater (10 mL) was added
3. extractionextracted with ethyl acetate (20 mL)
4. concentrationconcentrated
5. customto give the crude product, which
6. customwas purified by prep-TLC (DCM:MeOH=15:1)