Using potassium ion as template and in THF solution, 18crown6 was synthesized in 51.58 % yields by reaction of a mixture of triethylene glycol and dichlorotriethylenediether.

• 以钾离子为模板；用四氢呋喃作溶剂；以三甘醇和3；6二氧1；8二氯辛烷为原料；合成了18冠6；产率51.；58%25。