Abstract
Man-made homogeneous catalysis with the aid of transition metal compounds looks back on a long history of almost one hundred years. Still, more detailed insight into the underlying mechanisms is warranted. The knowledge of how transition metals with their specific/characteristic properties, such as oxidations states, redox chemistry, spin states, kinetics, and coordination preference will contribute to these processes paving the way to optimize existing processes, and to finding new exciting organic, inorganic, and organometallic transformations and to broaden the substrate scope through catalyst design. This special issue collects very recent mechanistic insight from experimental, theoretical, and mixed experimental–theoretical approaches.
Highlights
University of Cologne, Department of Chemistry, Institute for Organic Chemistry, Greinstrasse 4, Homogeneous, Bioinspired, and Supramolecular Catalysis, van’t Hoff Institute for Molecular Sciences
Even since the rise of “metal-free” organo-catalysis at the beginning of our millennium and its enormous impact on organic transformations, the established “classical” metal mediated applications reside as solid pillars in the toolbox for chemical synthesis [12,13,14]
Mechanistic insights are crucial for understanding and in this way important for the further development of multifaceted transition metal mediated transformations [16,17,18,19,20,21]
Summary
About 80 years after Roelen’s hydroformylation, on a list of recently identified “holy grails” in chemistry “perfect catalysis” is prominently in the top ten [11] and homogeneous transition metal catalysis provides the basis for many desired transformations, e.g., in C–H aminations, in site-selective bond activations, for the functionalization of alkanes or in oxidative couplings yielding complex target molecules. Barry Sharpless [14,15] clearly highlight homogeneous transition metal catalysis as an outstanding discipline, crucial for various areas of chemical synthesis. Mechanistic insights are crucial for understanding and in this way important for the further development of multifaceted transition metal mediated transformations [16,17,18,19,20,21].
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