Process for preparing silicon-containing vinyl ethers and vinyl thioethers of the general formula I ##STR1## where the variables have the following meanings: X is oxygen or sulfur, R.sup.1 is C.sub.1 -C.sub.20 -alkylene, C.sub.3 -C.sub.12 -cycloalkylene or C.sub.6 -C.sub.10 -arylene, R.sup.2, R.sup.3 and R.sup.4 are hydrogen, C.sub.1 -C.sub.20 -alkyl, C.sub.3 -C.sub.12 -cycloalkyl, C.sub.1 -C.sub.12 -alkoxy, phenoxy, heteroaryl or together with R.sup.1 form a C.sub.3 -C.sub.12 -cycle, by reaction of silicon-containing alcohols or thiols of the general formula II ##STR2## where the variables have the meaning indicated above, with acetylene, by carrying out the reaction in phenyl methyl sulfoxide, dimethyl sulfoxide, sulfolane or hexamethylphosphoramide in the presence of an alkali metal hydroxide.
制备含
硅乙烯醚和
乙硫醚的过程,其通式为I:##STR1## 其中变量的含义如下:X为氧或
硫,R.sup.1为C.sub.1-C.sub.20-烷基,C.sub.3-C.sub.12-环烷基或C.sub.6-C.sub.10-芳基,R.sup.2,R.sup.3和R.sup.4为氢,C.sub.1-C.sub.20-烷基,C.sub.3-C.sub.12-环烷基,C.sub.1-C.sub.12-烷氧基,苯氧基,杂环芳基或与R.sup.1一起形成C.sub.3-C.sub.12-环,通过将通式II的含
硅醇或
硫醇与
乙炔反应,在苯甲基亚磺酰
甲烷,二甲基亚磺酰
甲烷,磺酰
乙烷或六
甲基膦酰胺存在碱
金属氢氧化物的情况下进行反应。