Synthetic Applications of Photocatalyzed Halogen-Radical Mediated Hydrogen Atom Transfer for C−H Bond Functionalization

 Photocatalysis is a method of choice for the generation of reactive intermediates under mild conditions. This Review collects the recent examples exploiting this manifold to generate highly aggressive halogen radicals to activate C(sp3)−H bonds via Hydrogen Atom Transfer (HAT) for synthetic purposes. Available strategies to influence site-selectivity of the hydrogen atom transfer step have also been discussed.