【摘要】 合成了三种不同链长的1,ω-二(2-氨基吡啶)烷烃,分别为二溴化1,4-二(2-氨基吡啶)丁烷(C4)、二溴化1,6-二(2-氨基吡啶)己烷(C6)、二溴化1,8-二(2-氨基吡啶)辛烷(C8).考察了八元瓜环(Q[8])与上述三种1,ω-二取代烷烃的主客体相互作用,运用1H NMR及UV-vis证明三种客体与Q[8]的作用模式均不相同.在此基础上,考察了八元瓜环对三种底物光致环加成反应的超分子催化性能.结果表明,由于三种底物与Q[8]的主客体作用模式不同,八元瓜环对它们光二聚反应的超分子催化性能也各有差异.更多还原

【Abstract】 Three kinds of 1,ω-bi(2-aminopyridinium)alkylates,which are the 1,4-bi(2-aminopyridinium)butane dibromide gated using 1H NMR and UV-vis spectra,and the results showed that there were different interaction models in the three host-guest systems.Subsequently,the photocycloaddition reactions of the substrates have been carried out in the presence of(C4),1,6-bi(2-aminopyridinium)hexane dibromide(C6) and 1,8-bi(2-aminopyridinium)octane dibromide(C8),have been synthesized,respectively.The host-guest interactions of cucurbit[8]uril(Q[8]) with the above compounds have been investi-Q[8],and the dependence of the supramolecular catalytic active on the construction of substrate was observed.更多还原