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  Magnesium (phenyl)bromodichlorosilane (1.15 mL, 9.6 mmol) was added dropwise to a solution of dichlorodimethylsilane (5 mL) in Et₂O at 0 °C. The phenyl magnesium bromide was prepared from 4-bromobenzene (1.0 mL, 9.6 mmol) and magnesium powder particles (0.25 g, 10.6 mmol). The reaction mixture was brought to room temperature and stirred for 24 hours. After the reaction was complete, pentane was added to the reaction mixture. The precipitate was filtered off, and volatile substances were evaporated by rotary evaporation. The residue was purified by vacuum distillation (85 °C/6 mmHg) to obtain Chlorodimethylphenylsilane.

  

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