摘要
以对叔丁基杯芳烃为原料,合成了杯[4]芳烃磺酸和杯[6]芳烃磺酸;分别以杯[6]芳烃磺酸和杯[4]芳烃磺酸为催化剂,催化苯乙烯和多聚甲醛在无溶剂条件下发生缩合反应生成4-苯基-1,3-二氧六环;以30%H_2O_2为氧源,催化环辛烯环氧化合成环氧环辛烷,产物结构经~1H NMR确证。并对催化剂的热稳定性和循环利用性能进行了研究,对反应条件进行了优化。
p-Sulfonic acid calix[6]arene and calix[4]arene were prepared from calixarene and used to catalyze the condensation of styrene with paraformaldehyde to afford 4-phenyl-1,3-dioxane,and the epoxidation of cyclooctene with 30% H_2O_2 as source of oxygen to afford epoxy cyclooctane.The structures were confirmed by ~1H NMR.The thermal stabilities and reusabilities were studied.The reaction conditions were optimized.
引文
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