Neutral photogenerated N-centred radicals as a general, catalytic direct hydrogen atom transfer platform for aliphatic C–H functionalization (opens in new tab)

The introduction of diverse functionalities into omnipresent aliphatic C–H bonds is of notable value yet challenging in catalysis. While hydrogen atom transfer has emerged as a premier strategy, existing protocols frequently rely on O-centred radicals either generated from hazardous stoichiometric peroxides or within photocatalysts that are promiscuous in their excited state reactivity and non-conducive to structural tuning around the reactive centre. Here we disclose a general platform of re...