An efficient method for the synthesis of copillar[5]arenes was developed with FeCl3 as catalyst and different 1,4-dialkoxybenzenes and paraformaldehyde as reactants (yields: 50–85%). The host–guest property of (co)pillar[5]arenes and terminal dibromoalkanes was investigated by 1H NMR measurements and an X-ray study. The complexation behavior of the copillar[5]arenes can be tuned by changing the substituents
以FeCl 3为催化剂,以不同的1,4-二烷氧基苯和低聚甲醛为反应物,开发了一种高效的Copillar [5]芳烃合成方法(收率:50-85%)。通过1 H NMR测量和X射线研究了(co)pillar [5]芳烃和末端二溴代烷烃的主客体性质。可通过改变主体上的取代基来调节Copillar [5]芳烃的络合行为。在柱[5]-和柱[6]芳烃之间发现了完全的络合选择性,这是传感器技术的一个有趣方面。