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通过对特丁基杯[4]芳烃的酚羟基的选择性醚化制备了一系列—烃基,1,3-二烃基和四烃基醚,烃基分别含有缩醛、酰胺、氨基等活泼官能团。醚化反应的区域选择性主要取决于使用的碱的种类和反应时间的长短。
A series of - hydrocarbyl, 1,3-dihydrocarbyl and tetra-hydrocarbyl ethers were prepared by the selective etherification of the phenolic hydroxyl groups of t-butyl calix [4] arene. The hydrocarbyl groups contained active groups such as acetal, amide and amino groups, respectively. The regioselectivity of the etherification reaction depends mainly on the type of base used and the length of reaction time.