Synthesis and Reactivity of Compounds Containing Ruthenium-carbon, -nitrogen, and -oxygen Bonds - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Synthesis and Reactivity of Compounds Containing Ruthenium-carbon, -nitrogen, and -oxygen Bonds write by John Frederick Hartwig. This book was released on 1990. Synthesis and Reactivity of Compounds Containing Ruthenium-carbon, -nitrogen, and -oxygen Bonds available in PDF, EPUB and Kindle.
Synthesis and Reactivity of Compounds Containing Ruthenium-carbon, -nitrogen, and -oxygen Bonds
Synthesis and Reactivity of Compounds Containing Ruthenium-carbon, -nitrogen, and -oxygen Bonds - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Synthesis and Reactivity of Compounds Containing Ruthenium-carbon, -nitrogen, and -oxygen Bonds write by . This book was released on 1990. Synthesis and Reactivity of Compounds Containing Ruthenium-carbon, -nitrogen, and -oxygen Bonds available in PDF, EPUB and Kindle. The products and mechanisms of the thermal reactions of several complexes of the general structure (PMe3)4Ru(X)(Y) and (DMPM)2Ru(X)(Y) where X and Y are hydride, aryl, and benzyl groups, have been investigated. The mechanism of decomposition depends critically on the structure of the complex and the medium in which the thermolysis is carried out. The alkyl hydride complexes are do not react with alkane solvent, but undergo C-H activation processes with aromatic solvents by several different mechanisms. Thermolysis of (PMe3)4Ru(Ph)(Me) or (PMe3)4Ru(Ph)2 leads to the ruthenium benzyne complex (PMe3)4Ru([eta]2-C6H4) (1) by a mechanism which involves reversible dissociation of phosphine. In many ways its chemistry is analogous to that of early rather than late organo transition metal complexes. The synthesis, structure, variable temperature NMR spectroscopy and reactivity of ruthenium complexes containing aryloxide or arylamide ligands are reported. These complexes undergo cleavage of a P-C bond in coordinated trimethylphosphine, insertion of CO and CO2 and hydrogenolysis. Mechanistic studies on these reactions are described. The generation of a series of reactive ruthenium complexes of the general formula (PMe3)4Ru(R)(enolate) is reported. Most of these enolates have been shown to bind to the ruthenium center through the oxygen atom. Two of the enolate complexes 8 and 9 exist in equilibrium between the O- and C-bound forms. The reactions of these compounds are reported, including reactions to form oxygen-containing metallacycles. The structure and reactivity of these ruthenium metallacycles is reported, including their thermal chemistry and reactivity toward protic acids, electrophiles, carbon monoxide, hydrogen and trimethylsilane. 243 refs., 10 tabs.
Ruthenium and Osmium-Nitrogen Mulitple Bonded Complexes with Chelating Nitrogen And/or Oxygen Atom Donor Ligands
Ruthenium and Osmium-Nitrogen Mulitple Bonded Complexes with Chelating Nitrogen And/or Oxygen Atom Donor Ligands - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Ruthenium and Osmium-Nitrogen Mulitple Bonded Complexes with Chelating Nitrogen And/or Oxygen Atom Donor Ligands write by Ka-Lai Yip. This book was released on 2017-01-26. Ruthenium and Osmium-Nitrogen Mulitple Bonded Complexes with Chelating Nitrogen And/or Oxygen Atom Donor Ligands available in PDF, EPUB and Kindle. This dissertation, "Ruthenium and osmium-nitrogen mulitple bonded complexes with chelating nitrogen and/or oxygen atom donor ligands: synthesis, structures and reactivity studies" by Ka-lai, Yip, 葉嘉麗, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. DOI: 10.5353/th_b4501517 Subjects: Ruthenium compounds - Synthesis Osmium compounds - Synthesis Ligands Chelates
Synthesis and Reactivity of Ruthenium and Platinum Amido and Carbene Complexes: Application Toward Carbon-Nitrogen Bond Forming Reactions
Synthesis and Reactivity of Ruthenium and Platinum Amido and Carbene Complexes: Application Toward Carbon-Nitrogen Bond Forming Reactions - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Synthesis and Reactivity of Ruthenium and Platinum Amido and Carbene Complexes: Application Toward Carbon-Nitrogen Bond Forming Reactions write by . This book was released on 2004. Synthesis and Reactivity of Ruthenium and Platinum Amido and Carbene Complexes: Application Toward Carbon-Nitrogen Bond Forming Reactions available in PDF, EPUB and Kindle. Ru carbene complexes have been investigated for potential application toward carbon-nitrogen bond forming and breaking reactions. The reactivity of Grubbs-type olefin metathesis catalysts (Cl)2(L)(L')Ru=CHPh (L = L' = PCy3 or PPh3; L = PCy3 and L' = H2MesNHC) has been studied with cyclic and acyclic imines. The Ru benzylidene complex (Cl)2(PCy3)2Ru=CHPh undergoes a ligand exchange reaction with 1-pyrroline at room temperature, and oligomerizes 1-pyrroline at 90 oC. The low molecular weight poly(1-pyrroline) has been isolated and characterized. The Ru benzylidene complex has no reactivity toward acyclic imine C=N bonds, but reacts with enamine C=C bonds that form through tautomerization of imines. The Ru amido complexes, (PCP)Ru(CO)(NHPh) and (PCP)Ru(CO)(NHPh)(PMe3) (PCP = 2,6-(CH2P-t-Bu2)C6H3), have been synthesized and characterized. Reaction of (PCP)Ru(CO)(NHPh)(PMe3) with acetonitrile produces the amidinate complex (PCP)Ru(CO)(NHC(Me)NPh). Kinetic studies have demonstrated the formation of the amidinate complex occurs through dissociation of the PMe3 ligand, coordination of MeCN, and intramolecular nucleophilic attack of the amido ligand toward MeCN. The intramolecular nucleophilic attack reaction has been extensively studied with aromatic nitriles, carbodiimides, isocyanates, carboxamides and aldehydes. Reaction of (PCP)Ru(CO)(NHC(Me)NPh) with pentafluorobenzonitrile results in formation of a new amidinate complex (PCP)Ru(CO)(NHC(C6F5)NPh). The complex (PCP)Ru(CO)(NHC(C6F5)NPh) can initiate a C-F bond cleavage reaction of C6F5CN with ortho regioselectivity in the presence of ROH (R = H or Me). Reaction of five-coordinate complex (PCP)Ru(CO)(OTf) (OTf = OSO2CF3) with NaBAr'4 (Ar' = 3,5-(CF3)2C6H3) under different conditions results in formation of [(PCP)Ru(CO)(ClCH2Cl)][BAr'4], [(PCP)Ru(CO)(N2)][BAr'4] or [(PCP)Ru(CO)(FC6H5)][BAr'4]. Calculations have confirmed that the possible four-coordinate Ru complex with double agostic interactions has a higher ground state.
Practical Functional Group Synthesis
Practical Functional Group Synthesis - read free eBook in online reader or directly download on the web page. Select files or add your book in reader. Download and read online ebook Practical Functional Group Synthesis write by Robert A. Stockland, Jr.. This book was released on 2016-03-16. Practical Functional Group Synthesis available in PDF, EPUB and Kindle. A practical handbook for chemists performing bond forming reactions, this book features useful information on the synthesis of common functional groups in organic chemistry. • Details modern functional group synthesis through carbon-heteroelement (N, O, P, S, B, halogen) bond forming reactions with a focus on operational simplicity and sustainability. • Summarizes key and recent developments – which are otherwise scattered across journal literature – into a single source • Contains over 100 detailed preparations of common functional groups • Included 25 troubleshooting guides with suggestions and potential solutions to common problems. • Complements the text in enhanced ebook editions with tutorial videos where the author provides an introduction to microwave assisted chemistry
