Evidence for the Net Addition of Arene C-H Bonds across a Ru(ll)Hydroxide Bond

摘要

The activation of C-H bonds by transition metal complexes can proceed by multiple pathways,including the 1,2-addition of C-H bonds across early transition metal imido bonds.Such transformations are potentially useful since subsequent N-C reductive elimination(RE)would produce a free amine;however,RE is often a high-energy reaction for early transition metals.In contrast,REs of N-C and O-C bonds form the foundation of routes to aryl amines and ethers using late transition metal catalysts.Thus,it is anticipated that accessing the net addition of C-H bonds(regardless of the specific mechanism)across late transition metal M-X bonds(X = anionic N or O-based ligand)could ultimately lead to the development of routes for hydrocarbon functionalization.