反应详情

温度

80 °C

A solution of 1000 mg (1.79 mmol) of methyl 4-{(3E)-4-{2-[(4-tert-butylbenzyl)oxy]phenyl}-2-[2-(4-cyanophenyl)ethyl]but-3-en-1-yl}benzoate in 10 ml of toluene is mixed with 2851 mg (24.7 mmol) of trimethylsilyl azide and 618 mg (2.47 mmol) of di-n-butyltin oxide and heated at 80° C. for 12 h. After cooling to room temperature, the mixture is washed with saturated sodium bicarbonate solution. The organic phase is separated off, washed with saturated sodium chloride solution and dried over sodium sulfate. After filtration, the filtrate is concentrated to dryness. The resulting crude product is purified by chromatography on a silica gel column (mobile phase: cyclohexane/ethyl acetate 2:1→1:2). 648 mg (1.08 mmol, 60% of theory) of a colorless oil are obtained.

1. temperatureAfter cooling to room temperature
2. washthe mixture is washed with saturated sodium bicarbonate solution
3. customThe organic phase is separated off
4. washwashed with saturated sodium chloride solution
5. dry with materialdried over sodium sulfate
6. filtrationAfter filtration
7. concentrationthe filtrate is concentrated to dryness
8. customThe resulting crude product is purified by chromatography on a silica gel column (mobile phase: cyclohexane/ethyl acetate 2:1→1:2)
9. custom648 mg (1.08 mmol, 60% of theory) of a colorless oil are obtained