Synthesis of a criss-cross overlapped tetrathiafulvalenophane and a topologically new [2]catenane

Abstract

Using stepwise cyclization reactions followed by an intramolecular coupling, the criss-cross overlapped tetrathiafulvalenophane 8 was readily prepared. The structure of the cis,cis isomer was elucidated by X-ray crystallography which revealed a host–guest complex with chloroform. This electron donor was used for the synthesis of a topologically new type of [2]catenane 11-4PF₆, under ultra-high pressure (10 kbar).