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Mulheim an der Ruhr, Germany

Furstner A.,Max-Planck-Institut fur Kohlenforschung
Angewandte Chemie - International Edition | Year: 2014

Divining rod: Natural product synthesis often serves as a divining rod in our search for new and useful catalytic reactivity. This personal account - written in honor of the Max-Planck-Institut für Kohlenforschung on the occasion of its 100th anniversary - summarizes the major lines of research pursued in the author's laboratory, which show how total synthesis and research into basic organometallic chemistry cross-fertilize each other. © 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source


Schuth F.,Max-Planck-Institut fur Kohlenforschung
Chemistry of Materials | Year: 2014

Many energy conversion materials show increased performance, if the materials are used in nanostructured form. However, this could be detrimental for stability of the materials, since during cycling the nanostructuring tends to be lost because of particle growth. This problem may be solved by encapsulation of the active material in different types of matrices or coatings, which beyond the stabilization may also provide additional functionality, such as conductivity or mechanical reinforcement. This Perspective covers the general features of encapsulation strategies, and desribes selected examples for different types of energy conversion materials. At the end, promising development lines will be discussed, together with the need for a more systematic study of the effects of encapsulation. © 2013 American Chemical Society. Source


Palkovits R.,Max-Planck-Institut fur Kohlenforschung
Angewandte Chemie - International Edition | Year: 2010

Woodn't it be nice? Pentenoic acid is a possible answer to various challenges associated with cellulose-derived biofuels. Starting from (ligno)cellulose, enables a range of potential biofuels to become accessible. Such biofuels are compatible with today's engines and could be prepared without the need for external hydrogen. (Figure Presented) © 2010 Wiley-VCH Verlag GmbH S. Co. KGaA, Weinheim. Source


Reetz M.T.,Max-Planck-Institut fur Kohlenforschung
Angewandte Chemie - International Edition | Year: 2011

Evolution in the test tube: The traditional limitations of enzymes as catalysts in organic chemistry or biotechnology - comprising in many cases poor enantioselectivity, limited substrate scope, and insufficient stability - have been eliminated by the techniques of directed evolution. Iterative saturation mutagenesis in particular drives the efficient creation of a new generation of stereoselective biocatalysts which complement chiral synthetic homogeneous catalysts. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source


Furstner A.,Max-Planck-Institut fur Kohlenforschung
Angewandte Chemie - International Edition | Year: 2013

The early years of alkyne metathesis were marked by a somewhat ironic state of affairs: the proposed mechanism was swiftly validated and more than one effective catalyst became available shortly after the discovery of this transformation; surprisingly, however, the impact on synthesis remained very limited for a long period of time. Recent advances, however, suggest that this situation is about to change: the remarkable activity, functional-group tolerance, and reliability of the latest generation of catalysts open the door for highly advanced applications. The resulting (cyclo)alkynes are amenable to numerous postmetathetic transformations, which diversify the product portfolio and bring many different structural motifs into reach. Since the catalysts have also evolved from the glovebox to the benchtop, there should be little barrier left for a wider use of this reaction in organic synthesis. Making connections: The latest generation of alkyne metathesis catalysts holds considerable promise for synthesis, as they are exceptionally active, remarkably tolerant, and, in the form of their phenanthroline adducts, bench stable (see scheme). Numerous applications to material science and natural product synthesis illustrate the excellent performance and structural scope of this method. Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. Source

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