反应详情

温度

0 °C

Sodium bis(trimethylsilyl)amide (5.6 ml of 1M solution in THF) in 40 ml THF was added dropwise at 0° C. to a solution of 5-(2-cyanophenyl)indole (5.04 moles, 1.1 g) in 100 ml THF and stirred at 0° C. for 30 minutes. Methyl 3-bromononanoate (5.6 moles, 1.32 g) in 20 ml THF was added dropwise. The reaction was stirred at room temperature for 12 hours. An additional 5 mmoles of the base and the bromide were added. The reaction was stirred an additional 12 hours, added to ice water and extracted into ethyl acetate. The organic phase was dried over sodium sulfate and concentrated. The intermediate was chromatographed over silica gel eluted with 50% ether in hexane to yield 700 mg of methyl 3-[5-(2-cyanophenyl)indol-1-yl]nonanoate.

1. stirringThe reaction was stirred at room temperature for 12 hours
2. stirringThe reaction was stirred an additional 12 hours
3. extractionextracted into ethyl acetate
4. dry with materialThe organic phase was dried over sodium sulfate
5. concentrationconcentrated
6. customThe intermediate was chromatographed over silica gel
7. washeluted with 50% ether in hexane