Palladium-catalysed cyclisation–carboformylation. Molecular queuing cascades

Palladium(0)-catalysed tri- and tetra-molecular queuing cascades are described involving five- and six-membered ring formation accompanied by carboformylation of a proximate alkene and employing carbon monoxide (1 atm) and diphenylmethylsilane as the source of the formyl group.