Construction of Bisbenzofuro[2,3-b:3′,2′-e]pyridines by Palladium-Catalyzed Double Intramolecular Oxidative C–H/C–H Coupling

Kaida, Hiroyuki; Goya, Tsuyoshi; Nishii, Yuji; Hirano, Koji; Satoh, Tetsuya; Miura, Masahiro

Construction of Bisbenzofuro[2,3-b:3′,2′-e]pyridines by Palladium-Catalyzed Double Intramolecular Oxidative C–H/C–H Coupling

2017

The palladium-catalyzed intramolecular oxidative C–H/C–H coupling of 2-aryloxypyridines as challenging substrates is investigated to construct an important class of N,O-mixed heteroacenes, i.e. benzofuropyridines. It is found that 2,6-diaryloxypyridines efficiently undergo double cyclization to provide bisbenzofuro[2,3-b:3′,2′-e]pyridines of interest in materials chemistry.

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