Rh-catalysed divergent synthesis of polysubstituted pyrroles from α,β-unsaturated ketones via selective single or double insertion of isocyanides

A novel divergent synthetic method for polysubstituted pyrroles from isocyanides and α,β-unsaturated ketones in the presence of a rhodium catalyst and bis(pinacolato)diboron (B 2 pin 2 ) is described here.