Construction of Bisbenzofuro[2,3-b:3',2'-e]pyridines by Palladium-Catalyzed Double Intramolecular Oxidative C-H/C-H Coupling.
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DOI: 10.1021/acs.orglett.7b00323
Abstract: 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… read more here.
Keywords: bisbenzofuro pyridines; palladium catalyzed; intramolecular oxidative; oxidative coupling ... See more keywords