反应详情

温度

-78 °C

To a solution of n-BuLi (2.5M in hexane, 6.0 mL, 15 mmol) in ether (60 mL) at −78° C. is added a solution of 2-(trimethylsilyl)thiazole (2.0 mL, 12.5 mmol) in ether (20 mL) dropwise. The mixture is stirred at −78° C. for 1 h then tributyltin chloride (4.04 mL, 15 mmol) in ether (25 mL) is added dropwise and stirring is continued at −78° C. for 1 h. The reaction mixture is washed with saturated NaHCO3, dried over anhydrous MgSO4 and concentrated to afford the title compound as a yellow oil which used in the next step without further purification: 1H NMR (CDCl3) δ 0.41 (s, 9H), 0.90 (t, J=8 Hz, 9H), 1.14 (q, 6H), 1.13 (q, 6H), 1.54 (m, 6H), 8.06 (s, 1H); (M+1)+=447.

1. stirringstirring
2. waitis continued at −78° C. for 1 h
3. washThe reaction mixture is washed with saturated NaHCO3
4. dry with materialdried over anhydrous MgSO4
5. concentrationconcentrated