反应详情

To a suspension mixture of zinc powder (active, 5.1 g, 80.0 mmol) in dry THF (20 mL) was added dropwise 1,2-dibromoethane (0.28 mL, 5.7 mmol) at 70° C. under nitrogen atmosphere, followed by the addition of chlorotrimethylsilane (1.2 mL, 10.6 mmol). Subsequently, (1-bromoethyl)benzene (3.7 g, 20 mmol) was added dropwise. The resultant suspension was stirred at 70° C. for another 1 h. The reaction mixture was cooled to RT and directly used for the next step.