dichloro-bis(prop-2-enyl)silane

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a one-liter 3-neck flask with reflux condenser and dropping funnel, 29 g (170 mmoles) of SiCl4 in 150 mL of anhydrous ether were added. Allyl magnesium bromide solution [from 10 g (400 mmoles) of magnesium and 41.5 g (34 mmoles) of allyl bromide in 250 mL of anhydrous ether], filtered through glass wool, was added dropwise, MgBrCl precipitating. After boiling for 1.5 hours under reflux and washing the residue, diallyldichlorosilane was obtained at 56° C. and 16 hPa as a colorless liquid in a 15% yield. To a one-liter 3-neck flask with reflux condenser was added dropwise under reflux washing the residue