The method of liquid phase synthesis of dioxane from the cyclodehydration of diethylene glycol catalyzed by ASP-type solid acidic catalysts was studied.

研究了ASP型固体酸催化剂一缩(甘)环化脱水合成1,4-氧六环液相反。

And it mainly includes the action of 1,3-diethylene alkylation and acidyl; the action of addition of carbonyl compound; the action of chlorortrimethys:lane and the reaction of diethy lene.

对含碳负离子─—1，3-噻烷合成方法及其在有机合成上进行比较系统介绍，主要介绍1，3-噻烷烃基化和酰基化反，与羰基化合物加成反，与氯化三甲硅反及1，3-噻烷还原反。