A novel ligand-free copper-catalyzed Mizoroki-Heck cross-coupling
reaction of various aryl iodides with olefins has been developed.
Both the solvent and the base were found to have a fundamental influence
on the efficiency of the transformation in the presence of 10 mol% Cu2O,
with DMF and tetramethylammonium bromide (TMAB) being the optimal
solvent and base, respectively. As a result, a set of the corresponding E-internal olefins were obtained selectively
in moderate to good yields.
ligand-free - copper-catalyzed - Mizoroki-Heck
reaction - cross-coupling -
E-internal
olefins