Previous work in our group on the construction of flat two-dimensional architectures containing π-conjugation has shown that the molecules are not as flat as desired. The hydrogen in the ortho position of the phenyl rings is the problem. To alleviate steric interactions at this position, we have replaced the phenyl groups with 2-pyridinyl groups. These polypyridinylethynylarenes are highly conjugated and are expected to show directed energy and electron transfer and thus should be effective in the preparation of photoreactive materials such as electronic sensors or light harvesting materials. A variety of macrocyclic polypyridinylethynylarenes can be prepared from the key intermediate, 6-ethynyl-2-pyridinamine.

Synthesis of 2-dimensional polypyridinylethynylarenes

255th National Meeting (2018)

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