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Abstract Radialenes are alicyclic compounds in which every ring atom is sp 2 ‐hybridized and carries an exocyclic CC double bond. Because of their unusual topology and electronic structures these hydrocarbons have aroused the interest of both preparative chemists and theoreticians. Although considerable progress has been achieved recently, directed and efficient syntheses of these molecules remain a challenge. The study of their chemical behavior offers vast opportunities. Very recently materials scientists have become interested in these unusual compounds in their search for organic conductors and ferromagnets.
Hopf et al. (Sat,) studied this question.