对甲苯磺酸催化二甘醇合成二氧六环

Catalytic Synthesis of 1,4-Dioxane from Diethylene Glycol Using p-Toluene Sulphonic Acid as a Catalyst

利用二甘醇为原料 ,以对甲苯磺酸为催化剂合成了 1 ,4 -二氧六环。结果表明 :二甘醇 ( 2 0 0 mmol)在对甲苯磺酸 ( 2 0 mmol)作用下反应 2 0 min,产品收率 75 %。此法操作方便 。

The synthesis of 1,4 dioxane from diethylene glycol using p toluene sulphonic acid as a catalyst was discussed. The results showed that the yield was 75% under the optimum reaction condition. This method has the advantages of simple operation and mild reaction condition.