We
report a novel organic photoredox catalysis to achieve
unprecedented
γ-(hetero)aryl/alkenyl-δ-silyl aliphatic amines via silyl-mediated
distal (hetero)aryl/alkenyl migration of aromatic/alkenyl amines bearing
unactivated alkenes with hydrosilanes. This protocol features mild
and metal-free reaction conditions, high atom economy, excellent selectivity,
and functional group compatibility. Mechanistic studies suggest that
silylation and (hetero)aryl/alkenylation involve photoredox hydrogen
atom transfer catalysis and subsequent 1,4-migration of a remote (hetero)aryl/alkenyl
group from nitrogen to carbon.