Beilstein J. Org. Chem.2021,17, 977–982, doi:10.3762/bjoc.17.79
. Electrophilic substitution and further condensations give polycyclic systems, including oxazolo- and chromeno-fused analogues.
Keywords: benzofuropyridines; benzoquinones; dibenzofurans; Meerwein reaction; metal-free synthesis; Introduction
Dibenzofurans are important oxygen-containing heterocycles present in
, various metal-based approaches for arylation of quinone involving electrochemical [32], oxidative [33], and photochemical methods [34][35][36] are also available in the literature [37]. Langer and co-workers reported the synthesis of benzofuropyridines based on a domino reaction of 3-chlorochromones with