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2 edition of Carbon-hydrogen bond activation of phosphines by transition metal complexes found in the catalog.

Carbon-hydrogen bond activation of phosphines by transition metal complexes

Sibbele Hietkamp

Carbon-hydrogen bond activation of phosphines by transition metal complexes

by Sibbele Hietkamp

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Edition Notes

Statementdoor Sibbele Hietkamp.
The Physical Object
Pagination86 p.
Number of Pages86
ID Numbers
Open LibraryOL13944521M

The application of transition metals in organic synthesis, be it as catalysts or mediators, is one of the most interesting interdisciplinary topics in chemistry. The enormous breadth of transition metals in both research and industry is comprehensively covered by the team of over 70 international experts assembeled for this two-volume set. Wiley-VCH Verlag GmbH KGaA, p. ISBN From the very outset, arene chemistry has been one of the most varied and intensively studied areas of research, and has witnessed a rapid growth over the past few years in particular. This book, edited by the renowned chemist Didier.

In the complexes5, 6 and7 ortho carbon-hydrogen bond of the pendant phenyl ring of the ligands (L′) has been selectively and directly thiolated via the carbon—sulphur bond cleavage of4. The newly formed tridenate thiolated ligands (L′) are bound to the metal ion in a meridional fashion. Transition metal carbene complexes, also known as carbenoids; Atomic carbon a single carbon atom with the chemical formula:C: in effect a twofold carbene. Also has been used to make "true carbenes" in situ. Foiled carbenes derive their stability from proximity of a double bond (i.e. their ability to form conjugated systems). Carbene analogs.

complexes complex organometallics ligands reaction compounds scheme ligand soc organomet chromium bond prep inorg ray trans metal thf species bis electron containing reactions derivatives synthesis sime3   C–C bond formation also presents some difficulties, although methods exist for overcoming those in the context of CO chemistry, particularly with the aid of Lewis acid cocatalysts. There are promising examples of CO hydrogenation with transition metal reagents bearing pendant Lewis acids to reduced products having C–C bonds, but these Cited by:


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Carbon-hydrogen bond activation of phosphines by transition metal complexes by Sibbele Hietkamp Download PDF EPUB FB2

Metal complexes containing NHC ligands are ubiquitous in catalysis and applications have included all fields of modern catalysis, including hydrogenations, C–H bond activation, oxidation catalysis, cross-coupling, cyclization, and metathesis reactions. 55 While a summary of these achievements would expand the scope of this overview, two.

Alexandre F. Dunlop-Brière, Michael C. Baird and Peter H. Budzelaar, [Cp 2 TiCH 2 CHMe(SiMe 3)] +, an Alkyl–Titanium Complex Which (a) Exists in Equilibrium between a β-ACited by: Abstract. The intermolecular activation of notoriously unreactive carbon-hydrogen bonds by transition metal complexes continues to present an important challenge to organometallic chemistry, since hydrocarbons are perhaps the most attractive sources of more complex : L.

Dahlenburg. This article describes the generalization of an overlooked mechanism for CH bond activation at early transition metal centers, namely 1,3-CH bond addition at an η2-alkene intermediate. The phenyldi(2-thienyl)phosphine (PhPTh 2) complexes [Os 3 (CO) 12− n (PhPTh 2) n] (n = 1–3) (1–3) have been lysis of 1 and either 2 or 3 in octane affords carbon–hydrogen bond activation products [Os 3 (CO) 9 {μ 3-PPhTh(C 4 H 2 S)}(μ-H)] (4) and [Os 3 (CO) 8 (PPhTh 2){μ 3-PPhTh(C 4 H 2 S)}(μ-H)] (5), exist as isomeric mixtures Cited by: 6.

Transition metal-hydrogen and metal-carbon bond strengths: the keys to catalysis J. Martinho Simoes, and J. Beauchamp Chem. Rev.,90 (4), pp – The activation and cleavage of C–C single bonds mediated by transition metal complexes is one of the most challenging reactions, both practically and in terms of understanding, in the field of.

@article{osti_, title = {Chemical activation of molecules by metals: Experimental studies of electron distributions and bonding}, author = {Lichtenberger, D L}, abstractNote = {During this period of the project we have accomplished some important breakthroughs in understanding the relationships between molecular ionization energies and bond energies in transition metal complexes, in.

During this period of the project we have accomplished some important breakthroughs in understanding the relationships between molecular ionization energies and bond energies in transition metal complexes, in understanding the electronic factors of carbon-hydrogen bond activation by transition metals, in characterizing small molecule bonding interactions with transition metals, and in.

Organometallic chemistry is the study of organometallic compounds, chemical compounds containing at least one chemical bond between a carbon atom of an organic molecule and a metal, including alkaline, alkaline earth, and transition metals, and sometimes broadened to include metalloids like boron, silicon, and tin, as well.

Aside from bonds to organyl fragments or molecules, bonds to. A series of critical reviews and perspectives focussing on specific aspects of organometallic chemistry interfacing with other fields of study are provided.

For this volume, the critical reviews cover topics such as the activation of "inert" carbon-hydrogen bonds, ligand design and organometallic radical species. For example, Charlie O'Hara discusses how mixed-metal compounds may perform the.

Transition metal complexes of the pyridylphosphine ligand o-C 6 H 4 (CH 2 PPy 2) 2 Teresa F. Vaughan, John L. Spencer Dalton Transactions 45 (42), Cited by: transition metal complexes.

Chapter 7 covers reactions that occur primarily at the metal. The sections on the theory of C−H and C−C bond activation have been upgraded.

Chapter 8 looks at reactions that occur primarily on ligands attached to the metal, and the material in this chapter remains substantially the same as found in the second.

A novel strategy for characterization of transition metal hydrides and dihydrogen complexes in solution / Vladimir I. Bakhmutov -- NMR studies of ligand nuclei in organometallic compounds -- new information from solid-state NMR techniques / Guy M.

Bernard, Roderick E. Wasylishen -- Metal atom motion in some iron organometallics / Rolfe H. Selective Intermolecular Carbon-Hydrogen Bond Activation by Synthetic Metal Complexes in Homogeneous Solution Bruce A.

Arndtsen, Robert G. Bergman, T. Andrew Mobley, and Thomas H. Peterson Accounts of Chemical Research 28 (3), Cited by: A metal-free CH–CH-type coupling of arenes and alkynes, mediated by a multifunctional sulfoxide directing group, exploits nonprefunctionalized coupling partners, proceeds under mild conditions, is operationally simple, and exhibits high functional group tolerance.

The products of the CH–CH coupling are highly versatile, and the metal-free process can be used for the construction and late Cited by: R. Bergman, Activation of Carbon-Hydrogen Bonds in Alkanes and Other Organic Molecules Using Organotransition Metal Complexes, Adv.

Chem. Ser.–20 (). Google Scholar Author: Helmut Werner. The iridium(III) methyl diarylphosphide complexes, Ir(CH₃PR₂-[N(SiMe₂CH₂PPh₂)₂] (2a: R = phenyl, 2b: R = meta-tolyl) had been prepared previous to this work. The iridium(III) dimethylphosphide complex, Ir(CH₃)PMe₂-[N(SiMe₂CH₂PPh₂)₂], 2c, is readily prepared in situ by transmetallation of the Ir(CH₃)I[N(SiMe₂CH₂PPh₂)₂] with KPMe₂ at °C.

The synthesis of. Inorganic Reactions and Methods: Formation of the Bond to the Transition and Inner‐Transition Metals, Volume The chemistry of homogeneous transition metal systems offer parallels to the reactions on the surfaces of industrial hydrodesulphurization catalysts.

The reactions of several ruthenium complexes with sulphur-containing reagents are described, with an emphasis on the kinetics and mechanisms thereof. The complex Ru(CO)₂(PPh₃)₃ (2), for example, reacts quickly with thiols and disulphides Author: Philip Gregory Jessop. In chemistry, a carbene is a molecule containing a neutral carbon atom with a valence of two and two unshared valence general formula is R-(C:)-R' or R=C: where the R represent substituents or hydrogen atoms.

The term "carbene" may also refer to the specific compound H 2 C: also called methylene, the parent hydride from which all other carbene compounds are formally derived.Selective, catalytic carbon-carbon bond activation and functionalization promoted by late transition metal catalysts.

Journal of the American Chemical Society. PMID DOI: /jaj: 1: Pool JA, Lobkovsky E, Chirik PJ. Alkyl substituent effects on reductive elimination reactions in zirconocene alkyl hydride.The radical CDC is exclusively promoted by first-row transition metal complexes such as Cu, Fe, Mn (in some cases vanadium oxo-species) via single-electron transfer type pathway.

Selective C-H bond oxidation to a radical can be achieved with phenols, electron-rich arenes, benzylic compounds and C(sp 3)-H bond α- to carbonyl or heteroatom (O or N).