Activation of Unreactive Bonds and Organic Synthesis by Shinji Murai

By Shinji Murai

The crucial thought of this quantity is to supply a Capita Selecta of unconventional and thought-provoking issues in organometallic chemistry, provided by means of specialists in each one box. As meant, this procedure leads both to experiences protecting a particular unusual classification of organometallic compounds or to overviews which relate unusual actual houses with a number of periods of organometallic compounds. content material: constitution and electrochemistry of transition steel carbonyl clusters with interstitial or semi-interstitial atoms: distinction among nitrides or phosphides and carbides / Piero Zanello -- strange nuclear magnetic protecting and coupling constants concerning strange bonding occasions / Bernd Wrackmeyer -- Deuterium spin lattice leisure and deuterium quadrupole coupling constants. a unique process for characterization of transition steel hydrides and dihydrogen complexes in resolution / Vladimir I. Bakhmutov -- NMR experiences of ligand nuclei in organometallic compounds -- new info from solid-state NMR strategies / man M. Bernard, Roderick E. Wasylishen -- steel atom movement in a few iron organometallics / Rolfe H. Herber -- Magnetic communique in binuclear organometallic complexes mediated via carbon-rich bridges / Frďřic Paul, Claude Lapinte -- Molecular cluster complexes with facial arene ligands / Herbert Wadepohl -- Cobaltafulvenes and cobaltapentalenes: hugely polar metallacyclic II-systems with strange homes / Herbert Wadepohl -- Novel hugely nucleophilic ylidic ligands for the guidance of strangely good steel complexes / Norbert Kuhn, Martin Göhner, Gernot Frenking, Yu Chen -- Supramolecular interactions in buildings of natural antimony and Bismuth compounds / Gabor Balz̀s, Hans Joachim Breunig. summary: The vital concept of this quantity is to provide a Capita Selecta of unconventional and thought-provoking themes in organometallic chemistry, awarded via specialists in every one box. As meant, this process leads both to reports overlaying a particular unusual classification of organometallic compounds or to overviews which relate unusual actual houses with quite a few sessions of organometallic compounds

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The simplest and most convenient way is dehydrogenation. In 1979, Crabtree et al. showed the possibility of dehyrogenation of alkanes by using a stoichiometric amount of iridium-phosphine complex [65]. Several years later, Baudry and Ephritikhine showed the first example with respect to the catalytic conversion of alkanes to alkenes with the aid of the homogeneous transition metal complex as the catalyst (Eq. 35) [66]. They found that rhenium polyhydride complex catalyzes dehydrogenation of cycloalkane to cycloalkene in the presence of tert-butylethylene as the hydrogen acceptor.

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76 Topics in Organometallic Chemistry, Vol. 3 Volume Editor: S. Murai © Springer-Verlag Berlin Heidelberg 1999 48 Fumitoshi Kakiuchi, Shinji Murai 1 Introduction One of the most valuable synthetic methods in organic synthesis is the direct use of otherwise unreactive C–H bonds with the aid of transition metal complexes. Since Kleiman and Dubeck reported in 1963 the possibility of cleavage of C–H bonds in azobenzene by Cp2Ni complex [1], many research groups have reported the cleavage of C–H bonds by using stoichiometric amounts of transition metal complexes [2].

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