Visible-light mediated heterogeneous C-H functionalization: oxidative multi-component reactions using a recyclable titanium dioxide (TiO2) catalyst

Visible-light mediated heterogeneous C-H functionalization of tertiary amines provides access to a variety of alpha-amino amides. An oxidative, titanium dioxide catalyzed, Ugi-type, three-component reaction has been developed in which the catalyst can be recycled without loss of activity.