Organic Letters
Organic Letters
5 years ago

Cu-Catalyzed Aerobic Oxidative C–H/C–O Cyclization of 2,2′-Binaphthols: Practical Synthesis of PXX Derivatives

Cu-Catalyzed Aerobic Oxidative C–H/C–O Cyclization of 2,2′-Binaphthols: Practical Synthesis of PXX Derivatives
Toshiyuki Kamei, Mizuho Uryu, Toyoshi Shimada
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.

Publisher URL: http://dx.doi.org/10.1021/acs.orglett.7b01060

DOI: 10.1021/acs.orglett.7b01060

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