Considerable interest has been recently focused on hoop‐shaped π‐conjugated molecules
because of their great potentials in molecular electronics. In particular, cycloparaphenylenes (CPPs),
consist of para‐linked phenylene unit in a cyclic manner, have become the subject of recent interest in
this area.1 We report here the synthesis of CPPs,2) their derivatives,3 and a cage‐like three‐dimensional
molecule4 based on the platinum‐mediated assembly of ‐units and subsequent reductive elimination
of platinum (Scheme 1). Several unique properties of the prepared compounds are also reported