10519-87-6

Dimethyldivinylsilane a useful research chemical.

Dimethyl dichlorosilane (196 g, 1.52 mol) was dissolved in 5000 mL of anhydrous ether and cooled in an ice water bath. A vinyl magnesium chloride solution (2000 mL, 1.6 M) was added slowly and dropwise over a temperature range of 0-20°C. The reaction mixture was allowed to warm up naturally. After the dropwise addition, the reaction mixture was allowed to warm up naturally and the reaction was continued for 8-16 hours. Upon completion of the reaction, the reaction was quenched with deionized water at 0°C and the resulting solid was removed by filtration. The solvent was removed by distillation under reduced pressure to give a light brown liquid, the target product dimethyldivinylsilane, in 85-90% yield.

[1] Patent: CN103772425, 2018, B. Location in patent: Paragraph 0210; 0211-0213
[2] European Journal of Inorganic Chemistry, 2014, vol. 2014, # 26, p. 4394 - 4407
[3] Patent: WO2015/89811, 2015, A1. Location in patent: Page/Page column 6
[4] Journal of Organic Chemistry, 1957, vol. 22, p. 1200