Metal-Free Amino(hetero)arylation and Aminosulfonylation of Alkenes Enabled by Photoinduced Energy Transfer

& beta;-(Hetero)arylethylamines areprivileged structural motifsfound in many high-value organic molecules, including pharmaceuticalsand natural products. To construct these important molecular skeletons,previous methods are mainly achieved by amino(hetero)arylation reactionwith the aid of transition metals and preactivated substrates. Herein,we report a metal-free and photoinduced intermolecular amino(hetero)arylationreaction for the single-step installation of both (hetero)aryl andiminyl groups across alkenes in an efficient and regioselective manner.This method shows broad scope (up to 124 examples) and excellent toleranceof various olefins from the simplest ethylene to complex multisubstitutedalkenes can all participate in the reaction. Furthermore, aminosulfonylationof alkenes can be also conducted in the presence of sodium bisulfiteas the SO2 source.