A 1‐Oxa‐2‐nickela‐5‐cyclopentanone from Ethene and Carbon Dioxide: Preparation, Structure, and Reactivity

Abstract

Complex 1 is a key intermediate in the Ni 0 ‐promoted CC bond formation between alkenes and CO 2 ; it contains 1,8‐diazabicyclo[5.4.0]undec‐7‐ene (DBU) as ligand. The NiC bond of 1 can participate in further, regioselective insertion reactions with alkenes. The nickelacycle is thus a model complex for the study of Ni‐catalyzed reactions. equation image