Preparation of Tris(spiroorthocarbonate) Cyclophanes as Back to Back Ditopic Hosts
作者:Hiroshi Danjo、Kazuhisa Iwaso、Masatoshi Kawahata、Kazuaki Ohara、Toshifumi Miyazawa、Kentaro Yamaguchi
DOI:10.1021/ol4006882
日期:2013.5.3
tris(spiroorthocarbonate) cyclophanes were designed and prepared as ditopic hosts for electrically neutral or electron-rich guests. Preparation of the desired cyclophanes was achieved by cyclotrimerization of 2,2′,3,3′-tetrahydroxy-1,1′-binaphthyl (THB) via the transesterification of tetraphenyl orthocarbonate or dichlorodiphenoxymethane. In those reactions, bis(spiroorthocarbonate) cyclophane containing two
设计并制备了双碗形的tris(spiroorthocarbonate)环烷作为双位宿主,用于电中性或电子富集的客体。通过原碳酸四苯酯或二氯二苯氧基甲烷的酯交换反应,将2,2',3,3'-四羟基-1,1'-联萘基(THB)进行环三聚,从而制备所需的环烷。在那些反应中,还形成了含有两个THB单元的双(原碳酸正碳酸酯)环烷作为动力学上有利的产物。螺原碳酸盐双碗在结晶状态下对富勒烯C 60表现出对位分子识别。