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Theoretical Aspects of Homogeneous Catalysis - Applications of Ab Initio Molecular Orbital Theory (Hardcover, 1995 ed.)
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Theoretical Aspects of Homogeneous Catalysis - Applications of Ab Initio Molecular Orbital Theory (Hardcover, 1995 ed.)
Series: Catalysis by Metal Complexes, 18
Expected to ship within 12 - 17 working days
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Homogeneous catalysis plays an important role both in the
laboratory and in the industry. Successful applications in industry
involve new polymerisation processes with complexes of zirconium
and related metals, new carbonylation processes employing palladium
and rhodium, ring opening polymerisations, and new enantioselective
isomerisation catalysts as in the preparation of menthol. Also in
the synthesis of organic compounds in the laboratory highly
selective homogeneous catalysts represent an irreplaceable part of
the toolbox of the synthetic chemist. Examples of such reactions
are cross-coupling (Ni, Pd), nucleophilic substitution of
allylpalladium complexes, Heck reactions (Pd), asymmetric
epoxidation, Wacker type reactions (Pd), asymmetric hydrogenations
(Rh, Ru), reactions of chromium complexes, enantioselective
reactions with Lewis acids, reactions with the McMurry reagent,
etc. There is hardly any multistep organic synthesis that does not
involve one of these metal catalysed reactions. Most of these
catalysts have been developed by empiricism. The metal catalysed
processes consist of a series of elementary steps which often have
been studied in isolation in organometallic chemistry. The knowl-
edge of such elementary steps - effect ofligands, anions,
coordination number, valence states - has greatly contributed to
the development of improved cata- lysts for the reactions mentioned
above. In addition to the empirical approach theoretical methods
have given support and guidance to the development of improved
processes. Often the key steps of a cycle escape from a direct ob-
servation and then theoretical contributions are even more wanted.
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