Palladium‐Catalyzed Allylic Substitution at Four‐Membered‐Ring Systems: Formation of η1‐Allyl Complexes and Electrocyclic Ring Opening†
We are grateful to the Max‐Planck‐Society and the Max‐Planck‐Institut für Kohlenforschung for generous support of our research programs. This work was funded by the ERC (Starting Grant 278872 to N.M.). The invaluable support of our NMR, HPLC, and GC departments as well as Dr. R. Goddard (MPI Mülheim) for crystallographic analysis, is acknowledged. L.G.A. and A.M.M. are grateful to FCT, Portugal (SFRH/BD/44295/2008 and PEst‐OE/QUI/UI0100/2011) for financial support.
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Abstract
Caught in the act: A series of unique η1‐allyl palladium complexes of four‐membered cyclic systems bearing β‐hydrogens were prepared (see structure). Their unusual structure, reactivity, and unprecedented propensity for undergoing pericyclic reactions were uncovered.
