Shows efficient synthesis of peri-xanthenoxanthenes in 2,2'-binaphthols, indicating potential for high charge mobility applications.
Cu-catalyzed C-H/C-O cyclization of 2,2'-binaphthol, using air as an oxidant, was developed. C-H functionalization of binaphthols occurred at the 8,8'-position to form peri-xanthenoxanthenes that exhibit high charge-carrier mobility. The reaction can tolerate a wide variety of functional groups and afforded the corresponding peri-xanthenoxanthene derivatives via an efficient procedure.
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Kamei et al. (2017) studied this question.
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