反应详情

温度

120 °C

About 84 g of allyl but-2-enyl ether are heated under reflux (about 120° C.) in a three-necked flask fitted with a reflux condenser, stirrer and dropping funnel. To this are added dropwise over a period of two hours a solution containing 82 g of triethoxysilane, in which 2 mg of platinum, calculated as the element, are dissolved in the form of a solution of platinum tetrachloride in 1-octene. After heating for an additional five hours under reflux, more than 99 percent of the Si-bonded hydrogen atoms have been converted. The intermediate obtained in this manner, (but-2-enyloxypropyl)triethoxysilane, is purified by distillation at 104° C. and at 7 hPa (abs.) and contains 5 percent by weight, based on the total weight of the intermediate, of (but-1enyloxypropyl)triethoxysilane.

1. customfitted with a reflux condenser, stirrer
2. additionTo this are added dropwise over a period of two hours a solution
3. temperatureAfter heating for an additional five hours
4. temperatureunder reflux