反应详情

温度

80 °C

Under a nitrogen atmosphere, to a solution of potassium tert-butoxide (4.0 g, 0.036 mol) in 1-methyl-2-pyrrolidone (8.0 mL) which stirred with heating at 80° C., a solution of 2-amino-5-chloro-3-[(trimethylsilyl)ethynyl]pyridine (4.0 g, 0.018 mol) in 1-methyl-2-pyrrolidone (22 mL) was added dropwise and the mixture was stirred for 1 h. Cooled to ambient temperature, the reaction mixture was diluted with brine and stirred, then extracted with diethyl ether for 3 times. The organic layer was washed with brine, dried over sodium sulfate and concentrated to afford 5-chloro-7-azaindole as solid (2.3 g, y. 85%).

1. temperatureCooled to ambient temperature
2. stirringstirred
3. extractionextracted with diethyl ether for 3 times
4. washThe organic layer was washed with brine
5. dry with materialdried over sodium sulfate
6. concentrationconcentrated