Preparation method of tetraalkoxy silyl ether compound

The invention discloses a preparation method of a tetraalkoxy silyl ether compound, which comprises the following steps of: reacting alcohol with silane under the condition of an organic phosphine catalyst, filtering to remove inorganic salt after the reaction, and separating to obtain a tetraalkoxy silyl ether colorless liquid. The method has the advantages that the catalyst and the catalytic reaction are green, environment-friendly and efficient, meanwhile, the post-treatment link of the reaction is optimized, the reaction operation is simple and controllable, the reaction yield and selectivity are greatly improved, and a solid foundation is laid for large-scale preparation of tetraalkoxy silyl ether compounds. 本发明公开了一种四烷氧基硅醚化合物的制备方法，在有机膦催化剂的条件下，醇和硅烷进行反应，反应后过滤除去无机盐，分离得到四烷氧基硅醚无色液体。该方法的优点在于催化剂和催化反应绿色、环保和高效，同时优化了反应后处理环节，使得反应操作简单、可控，反应产率和选择性大大提高，为四烷氧基硅醚类化合物的大规模制备奠定了坚实的基础。