The combination of two powerful cobalt-catalyzed carbon–carbon bond forming transformations, namely, the Diels–Alder and the 1, 4-hydrovinylation reaction, in a tandem or a sequential one-pot procedure, opened up a concise and efficient route to polysubstituted aromatic systems and cyclohex-3-enone derivatives. Furthermore, ozonolysis of the latter products led to polycarbonyl compounds with tailored carbonyl ...
