Organoplatinum‐Mediated Synthesis of Cyclic pi‐Conjugated Molecules

Abstract

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