posted on 2021-06-09, 08:14authored byMuhammad
Asif Iqbal, Le Lu, Hina Mehmood, Ruimao Hua
In the absence of
ligand, Cs2CO3-promoted
cross-coupling reaction of arenes with cyano-/nitro-substituted aryl
halides in DMSO affording biaryls is reported. The cyano/nitro group
in biaryls is useful and convenient for further transformation. The
formation of dibenzofurans resulting from the reactions between arenes
and 1-bromo-2-iodobenzene is also reported. On the basis of control
experiments and theoretical studies, a radical mechanism is proposed
for the formation of biaryls.