Abstract
An expeditious route involving a Pd-catalyzed intramolecular biaryl-coupling for the synthesis of the N-methyl-5,6-dihydrobenzo[c]phenanthridine scaffold has been developed. For the first time, we herein report the sp3 C(6)–H functionalization of this heterocyclic scaffold through DDQ-mediated cross-dehydrogenative coupling reactions with nitroalkanes, dialkyl malonates, alkynes, dialkyl phosphites, carbonyl compounds, pyrrole, and indoles.
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