The first cut is the deepest: Hydrogenolysis is now applicable to the inert C(aryl)O bonds in aryl ethers by using a soluble nickel complex ligated by N-heterocyclic carbenes. The protocol is potentially useful in the depolymerization of aryl ether-based biopolymers, such as lignin and coal. COD: 1,5-cyclooctadiene.
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