Nickel‐Catalyzed CO2 Rearrangement of Enol Metal Carbonates for the Efficient Synthesis of β‐Ketocarboxylic Acids

Nickel‐Catalyzed CO2 Rearrangement of Enol Metal Carbonates for the Efficient Synthesis of β‐Ketocarboxylic Acids: 4‐Methylene‐1,3‐dioxolan‐2‐ones underwent oxidative addition of a Ni0 catalyst in the presence of Me2Al(OMe), followed by a coupling reaction with alkynes, to form δ,ϵ‐unsaturated β‐ketocarboxylic acids...

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