反应详情

To a solution of 2-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (4.01 mmol, 1 g) and 4-dimethylaminopyridine (0.401 mmol, 0.049 g) in dichloromethane (5 ml) and pyridine (5 ml) was added 1-methyl-1H-indole-2-carbonyl chloride (5.22 mmol, 1.010 g) and this solution was stirred at room temperature for four days. The reaction mixture was concentrated and coevaporated with toluene. To the residue dichloromethane and water were added. The organic layer was separated, dried (sodium sulfate) and concentrated in vacuo. Purification using flash chromatography (silica gel, dichloromethane) yielded N-(2-methoxy-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)-1-methyl-1H-indole-2-carboxamide (1.5 g).

1. concentrationThe reaction mixture was concentrated
2. additionTo the residue dichloromethane and water were added
3. customThe organic layer was separated
4. dry with materialdried (sodium sulfate)
5. concentrationconcentrated in vacuo
6. customPurification