“…Most olefin isomerization reactions are catalyzed by noble metals, such as ruthenium, 2 rhodium, 2j,3 palladium, 4 iridium, 5 platinum, 6 and molybdenum. 7 However, owing to the low abundance, high cost, and toxicity of precious metals, there is a growing tendency to substitute such catalysts with base-metal catalysts. Furthermore, owing to the unique structural and electronic properties of non-precious metals, olefin isomerization catalyzed by base metals might offer opportunities to discover new reactivities and selectivities differentiated from established precious-metalcatalyzed reactions.…”