以二氧杂环己烷为溶剂，通过聚乙二醇2 70与对甲基苯磺酰氯反应合成了1 8冠6，产率64 .4 %。

Also, in dioxane solution, 18Crown6 was prepared in 64.4% yields by reaction of polyethylene glycol 270 and ptoluenesulfonyl chloride.

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含1，3，2-二氧磷杂环己烷结构的磷-氮系膨胀型阻燃剂的合成和阻燃性能研究。

Synthesis and Flame Resistance Study of Phosphorus-Nitrogen Type Intumescent Flame Retardant Containing 1,3,2-Dioxaphosphorinane Unit.

youdao

含1，3，2-二氧磷杂环己烷结构的磷-氮系膨胀型阻燃剂的合成和阻燃性能研究。

Synthesis and Flame Resistance Study of Phosphorus-Nitrogen Type Intumescent Flame Retardant Containing 1,3,2-Dioxaphosphorinane Unit.

youdao