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From tetrabenzoheptafulvalene to sp2 carbon nano-rings

Research paper by Kwan Yin Cheung, Shuaijun Yang, Qian Miao

Indexed on: 25 Jan '17Published on: 13 Jan '17Published in: Organic Chemistry Frontiers



Abstract

Herein we report a new strategy to construct nano-rings of sp2 carbon by taking advantage of the “C” shape of syn-tetrabenzoheptafulvalene. This strategy led to the successful synthesis of an sp2 carbon nano-ring containing a tetrabenzoheptafulvalene moiety fused with tetraphenylene. However, attempts to synthesize a more strained nano-ring of sp2 carbon using the same strategy only yielded an oxygen-bridged nano-ring with the step of aromatization being unsuccessful. Both the nano-rings were unambiguously characterized by X-ray crystallography.

Graphical abstract 10.1039/C6QO00828C.gif