双杯芳烃研究进展

双杯芳烃是杯芳烃家族中的重要一员。它由两个杯芳烃单元通过化学键联结而形成，一般常有上缘-下缘、下缘-下缘、下缘-上缘3种桥联方式，其结构更复杂，性质也更为丰富多彩。双杯芳烃具有两个相同或不相同的结合部位，可同时络合两个相同或不相同的底物，还可表现出特殊的协同作用、更强的络合能力、变构象以及粒子雾荡等新的性质。本文根据杯芳烃亚单元的种类，综述了双杯芳烃的研究进展，重点描述了不同桥联方式的双杯[4]芳烃的合成方法，而且对一些具有特殊性能的双杯芳烃进行了较为详细的介绍。最后对双杯芳烃的发展前景作了展望。

Progress in Biscalixarene Research

Biscalixarene is an important member of calixarene family,composed of two calixarene moieties linked at their upper(head) or lower(tail) rim through various spacers with more complicated structures and colorful properties as compared to mono calixarene.It can be divided into three basic types commonly known as head-to-head,tail-to-tail,and head-to-tail bridged biscalixarene.Biscalixarene containes two same or different recognition sites and can complex two same or different guests.Moreover,it has some high-level properties such as stronger inclusion ability,allosteric effects,oscallation between the two metal-binding sites and so on due to cooperative effect.Here,a survey of biscalixarene chemistry and recent research progress are reviewed according to the type of calixarene subunits.The syntheses of the biscalix[4] arene with various linked types are emphatically described,and some special biscalixarenes are described in detail as well.The prospect of biscalixarene chemistry is also discussed.