Iron-catalyzed acylation-oxygenation of terminal alkenes for the synthesis of dihydrofurans bearing a quaternary carbon.

Iron-catalyzed acylation-oxygenation of terminal alkenes is reported. Acyl radicals generated by the oxidation of aldehydes add to terminal alkenes and followed by intramolecular oxygenation give functionalized 2,3-dihydrofuran derivatives bearing a quaternary carbon.