Convenient synthesis and reduction properties of [7]circulene

Abstract

Saddle-shaped [7]circulene (1) is prepared by an extremely simple procedure that involves a 2,15-ethano-bridged hexahelicene intermediate. Reduction properties of the [7]circulene have been investigated by means of voltammetry and ESR spectroscopy and compared with those of planar [6]circulene (coronene) (2).

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