Dr. Christopher J. Shaffer, Dr. Detlef Schröder, Christoph Gütz and Prof. Dr. Arne Lützen Intramolecular CH Bond Activation through a Flexible Ester Linkage Angewandte Chemie International Edition 51
Replacing the director: A bipyridinyl ligand with an aliphatic side chain determines the regioselectivity of copper-catalyzed CH oxidation by intramolecular effects. Because the aliphatic chain is attached through an ester linkage, the catalytic cycle can in principle be closed by transesterification. Ion-mobility mass spectrometry and isotopic labeling provide mechanistic insight not available from direct mass spectrometry experiments.
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