反应详情

600.0 mL (0.300 mol) pentafluorophenyl magnesiumbromide (0.5 M sol. in Et2O) is added dropwise to a solution of 30.3 mL (0.300 mol, 40.635 g) HSiCl3 in Et2O at −70° C. Reaction mixture is allowed to warm slowly to room temperature by stirring overnight. Diethylether is evaporated and an excess of n-heptane (˜200 mL) is added to precipitate the magnesium salts. Solution is filtrated and evaporated to dryness. The residue, pentafluorophenyldichlorosilane, is purified by fractional distillation.

1. customReaction mixture
2. customDiethylether is evaporated
3. additionan excess of n-heptane (˜200 mL) is added
4. customto precipitate the magnesium salts
5. filtrationSolution is filtrated
6. customevaporated to dryness
7. distillationThe residue, pentafluorophenyldichlorosilane, is purified by fractional distillation