反应详情

A solution of 14.2 g (55 mmol) of 1,4-dichloro-2-(trichloro)silyl-2-butene [VI]in 7 ml of THF was cooled to -10° C., to which was slowly added dropwise a mixed solution of 10 ml of CH3OH (55×3×1.5 mmol) and 34.5 ml of (C2H5)3N (55 x 3 x 1.5 mmol). Then, it was stirred at room temperature for one hour and 30 ml of dry ether were added. After filtering out the (C2H5)3N·HCl and removing the solvent through distillation under a reduced pressure, 10.8 g of 1,4-dichloro-2-(trimethoxy)silyl-2-butene [VII](yield: 80 %, bp: 88°-90° C./1-2 mmHg).

1. filtrationAfter filtering out the (C2H5)3N·HCl
2. customremoving the solvent