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Functionalised And Cyclometallated N Heterocyclic Carbene Complexes Of Pd Ni Rh And Ir
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Book Synopsis Functionalised and Cyclometallated N-Heterocyclic Carbene Complexes of Pd, Ni, Rh and Ir by : Neoklis Stylianides
Download or read book Functionalised and Cyclometallated N-Heterocyclic Carbene Complexes of Pd, Ni, Rh and Ir written by Neoklis Stylianides and published by . This book was released on 2007 with total page 206 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Functionalised N-Heterocyclic Carbene Complexes by : Olaf Kühl
Download or read book Functionalised N-Heterocyclic Carbene Complexes written by Olaf Kühl and published by John Wiley & Sons. This book was released on 2010-02-02 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt: N-heterocyclic carbenes (NHCs) have found increasing use as reagents for a range of organic transformations and in asymmetric organocatalysis. The performance of these molecules can be improved and tuned by functionalisation. Functionalised carbenes can anchor free carbenes to the metal site, introduce hemilability, provide a means to immobilise transition metal carbene catalysts, introduce chirality, provide a chelate ligand or bridge two metal centres. NHC can be attached to carbohydrates and campher, derived from amino acids and purines, they can be used as organocatalysts mimicking vitamin B1 or as weak “solvent” donors in lanthanide chemistry. Functionalised N-Heterocyclic Carbene Complexes describes major trends in functionalised NHC ligands, aiming to assist readers in their attempts to develop and apply their own functionalised carbenes. After an introduction to the chemistry and behaviour of NHC, the book gives a detailed description of functionalised carbenes and their complexes according to a range of functional groups, each with a discussion of the synthetic route, structure, stability and performance. Functionalised N-Heterocyclic Carbene Complexes is an essential guide to fine-tuning this important class of compounds for practitioners, researchers and advanced students working in synthetic organometallic and organic chemistry and catalysis.
Book Synopsis The Organometallic Chemistry of N-heterocyclic Carbenes by : Han Vinh Huynh
Download or read book The Organometallic Chemistry of N-heterocyclic Carbenes written by Han Vinh Huynh and published by John Wiley & Sons. This book was released on 2017-02-03 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Organometallic Chemistry of N-heterocyclic Carbenes describes various aspects of N-heterocyclic Carbenes (NHCs) and their transition metal complexes at an entry level suitable for advanced undergraduate students and above. The book starts with a historical overview on the quest for carbenes and their complexes. Subsequently, unique properties, reactivities and nomenclature of the four classical NHCs derived from imidazoline, imidazole, benzimidazole and 1,2,4-triazole are elaborated. General and historically relevant synthetic aspects for NHCs, their precursors and complexes are then explained. The book continues with coverage on the preparation and characteristics of selected NHC complexes containing the most common metals in this area, i.e. Ni, Pd, Pt, Ag, Cu, Au, Ru, Rh and Ir. The book concludes with an overview and outlook on the development of various non-classical NHCs beyond the four classical types. Topics covered include: Stabilization, dimerization and decomposition of NHCs Stereoelectronic properties of NHCs and their evaluation Diversity of NHCs Isomers of NHC complexes and their identification NMR spectroscopic signatures of NHC complexes normal, abnormal and mesoionic NHCs The Organometallic Chemistry of N-heterocyclic Carbenes is an essential resource for all students and researchers interested in this increasingly important and popular field of research.
Book Synopsis Synthesis and Reactivity of Metal Complexes Containing Functionalized N-heterocyclic Carbene Ligands for Catalytic Applications by : Pengfei Ai
Download or read book Synthesis and Reactivity of Metal Complexes Containing Functionalized N-heterocyclic Carbene Ligands for Catalytic Applications written by Pengfei Ai and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The purpose of this work was the synthesis of N,N'-diphosphanyl-functionalized NHC ligands andtheir coordination chemistry. The novel stable and rigid tridentate N,N'-diphosphanyl-imidazol-2-ylidene was synthesized and experimental and computational information on its stability weregained. It served as a unique platform for the synthesis of novel mono-, di-, tri-, penta-, hexanuclear complexes with the coinage metals (Cu, Ag and Au), exhibiting rare structural features. The mono- and dinuclear complexes with one or two dangling P-donors provided rational access to heterotrinuclear complexes. All these coinage metal complexes have short metal-metalseparations, indicating the presence of d10-d10 interactions, and display excellent luminescentproperties. Partial or complete transmetallation of the homotrinuclear Cu or Ag complexes withPd(0) precursors led to hetero-trinuclear complexes with d10-d10 interactions. In addition to itsbridging behavior, this ligand also showed its chelating behavior in Pd or Cr(III) complexes. Thelatter displayed superior performance in ethylene oligomerization than the Cr(II) complexes andgave mostly oligomers.
Book Synopsis N-Heterocyclic Carbenes in Synthesis by : Steven P. Nolan
Download or read book N-Heterocyclic Carbenes in Synthesis written by Steven P. Nolan and published by Wiley-VCH. This book was released on 2006-12-13 with total page 319 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first handbook to focus solely on the application of N-heterocyclic carbenes in synthesis covers metathesis, organocatalysis, oxidation and asymmetric reactions, along with experimental procedures. Written by leading international experts this is a valuable and practical source for every organic chemist.
Book Synopsis N-heterocyclic Carbenes by : Silvia Díez-González
Download or read book N-heterocyclic Carbenes written by Silvia Díez-González and published by Royal Society of Chemistry. This book was released on 2011 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last fifteen years, N-heterocyclic carbenes (NHCs) have mostly been used as ancillary ligands for the preparation of transition metal-based catalysts. Compared to phosphorus-containing ligands, NHCs tend to bind more strongly to metal centres, avoiding the necessity for the use of excess ligand in catalytic reactions. The corresponding complexes are often less sensitive to air and moisture, and have proven remarkably resistant to oxidation. Recent developments in catalysis applications have been facilitated by the availability of carbenes stable enough to be bottled, particularly for their use as organocatalysts. This book shows how N-heterocyclic carbenes can be useful in various fields of chemistry and not merely laboratory curiosities or simple phosphine mimics. NHCs are best known for their contribution to ruthenium and palladium-catalysed reactions but the scope of this book is much broader. The synthesis of NHC ligands and their corresponding metal complexes are covered in depth. Moreover, the biological activity of NHC-containing complexes, as well as an overview of their theoretical aspects are included. Such metal species are further examined, not only in terms of their catalytic applications, but also of their stereoelectronic parameters and reactivity/stability. Finally, special attention is given to the hot topic of organocatalysis. The book will be of interest to postgraduates, academic researchers and those working in industry.
Book Synopsis The Mizoroki-Heck Reaction by : Martin Oestreich
Download or read book The Mizoroki-Heck Reaction written by Martin Oestreich and published by John Wiley & Sons. This book was released on 2009-02-11 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt: Exploring the importance of Richard F. Heck’s carbon coupling reaction, this book highlights the subject of the 2010 Nobel Prize in Chemistry for palladium-catalyzed cross couplings in organic synthesis, and includes a foreword from Nobel Prize winner Richard F. Heck. The Mizoroki-Heck reaction is a palladium-catalyzed carbon–carbon bond forming process which is widely used in organic and organometallic synthesis. It has seen increasing use in the past decade as chemists look for strategies enabling the controlled construction of complex carbon skeletons. The Mizoroki-Heck Reaction is the first dedicated volume on this important reaction, including topics on: mechanisms of the Mizoroki-Heck reaction intermolecular Mizoroki-Heck reactions focus on regioselectivity and product outcome in organic synthesis waste-minimized Mizoroki-Heck reactions intramolecular Mizoroki-Heck reactions formation of heterocycles chelation-controlled Mizoroki-Heck reactions the Mizoroki-Heck reaction in domino processes oxidative heck-type reactions (Fujiwara-Moritani reactions) Mizoroki-Heck reactions with metals other than palladium ligand design for intermolecular asymmetric Mizoroki-Heck reactions intramolecular enantioselective Mizoroki-Heck reactions desymmetrizing Mizoroki-Heck reactions applications in combinatorial and solid phase syntheses, and the development of modern solvent systems and reaction techniques the asymmetric intramolecular Mizoroki-Heck reaction in natural product total synthesis Several chapters are devoted to asymmetric Heck reactions with particular focus on the construction of otherwise difficult-to-obtain sterically congested tertiary and quaternary carbons. Industrial and academic applications are highlighted in the final section. The Mizoroki-Heck Reaction will find a place on the bookshelves of any organic or organometallic chemist. “I am convinced that this book will rapidly become the most important reference text for research chemists in academia and industry who seek orientation in the rapidly growing and – for the layman – confusing field described as the “’Mizoroki–Heck reaction’.” (Synthesis, March 2010)
Book Synopsis Neutral Nickel and Palladium Complexes of Chelating Anionic N-heterocyclic Carbenes by : Benjamin E. Ketz
Download or read book Neutral Nickel and Palladium Complexes of Chelating Anionic N-heterocyclic Carbenes written by Benjamin E. Ketz and published by . This book was released on 2005 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Novel Di(N-heterocyclic Carbene) Ligands and Related Transition Metal Complexes by : Marco Monticelli
Download or read book Novel Di(N-heterocyclic Carbene) Ligands and Related Transition Metal Complexes written by Marco Monticelli and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The PhD, a collaboration between the University of Padova and the University of Strasbourg, is focused on the chemistry of di(N-heterocyclic carbene) ligands and can be divided in four families of ligands that constitute the four chapters: i) metal complexes (Cu(I), Ag(I), Au(I), Ir(III), Ru(II)) with di(N-heterocyclic carbene) ligands bearing a rigid phenylene bridge between the carbene units; ii) metal complexes (Cu(I), Ag(I), Au(I), Ru(II)) combining an imidazole-based NHC ligand functionalized with a triazole in the 5 position of the backbone; iii) metal complexes (Ag(I), Au(I), Pd(II)) with heteroditopic ligands based on imidazol-2-ylidene and 1,2,3-triazol-5-ylidene moieties connected with a propylene bridge; iv) bis(benzoxazolium) proligands and attempted synthesis of related transition metal complex.
Book Synopsis N-Heterocyclic Carbenes in Transition Metal Catalysis by : Frank Glorius
Download or read book N-Heterocyclic Carbenes in Transition Metal Catalysis written by Frank Glorius and published by Springer. This book was released on 2010-11-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this book leading experts have surveyed major areas of application of NHC metal complexes in catalysis. The authors have placed a special focus on nickel- and palladium-catalyzed reactions, on applications in metathesis reactions, on oxidation reactions and on the use of chiral NHC-based catalysts. This compilation is rounded out by an introductory chapter and a chapter dealing with synthetic routes to NHC metal complexes.
Download or read book Click Triazoles written by Janez Košmrlj and published by Springer. This book was released on 2012-05-30 with total page 245 pages. Available in PDF, EPUB and Kindle. Book excerpt: B. R. Buckley and H. Heaney: Mechanistic Investigations of Copper(I)- Catalyzed Alkyne–Azide Cycloaddition Reactions.- J. D. Crowley and D. A. McMorran: “Click-Triazole” Coordination Chemistry: Exploiting 1,4-Disubstituted-1,2,3-Triazoles as Ligands.- S. Lee and A. H. Flood: Binding Anions in Rigid and Reconfigurable Triazole Receptors.- M. Watkinson: Click Triazoles as Chemosensors.- H.-F. Chow, C.-M. Lo and Y. Chen: Triazole-Based Polymer Gels.- T. Zheng, S. H. Rouhanifard, A. S. Jalloh, P. Wu: Click Triazoles for Bioconjugation.- S. Mignani, Y. Zhou, T. Lecourt and L. Micouin: Recent Developments in the Synthesis 1,4,5-Trisubstituted Triazoles.
Book Synopsis Aryl-Substituted Imino-N-Heterocyclic Carbene Complexes Of Late Transition Metals by : Anna Candace Badaj
Download or read book Aryl-Substituted Imino-N-Heterocyclic Carbene Complexes Of Late Transition Metals written by Anna Candace Badaj and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Cyclometalation Reactions by : Iwao Omae
Download or read book Cyclometalation Reactions written by Iwao Omae and published by Springer Science & Business Media. This book was released on 2014-01-23 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a review of cyclometalation reactions and organometallic intramolecular-coordination five-membered ring products, the most active type of reactions in synthetic organic reactions and their products. Included is the discovery of intramolecular-coordination bonds in cyclometalation reactions and the characteristics of those reactions, as well as the reasons that their five-membered ring compounds are very easily synthesized through such reactions. In addition, the applications of cyclometalation reactions and five-membered ring products, synthetic applications, catalysts, and other products are described. These topics are of special interest for industrial researchers.
Book Synopsis Synthesis and Applications of O-functionalised N-heterocyclic Carbene Complexes of First-row Transition Metals by : Simone Bertini
Download or read book Synthesis and Applications of O-functionalised N-heterocyclic Carbene Complexes of First-row Transition Metals written by Simone Bertini and published by . This book was released on 2020 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Synthesis, Characterisation and Analysis of Structurally Imposing Eight-membered Ring Heterocyclic Carbenes by : Wei Lu
Download or read book Synthesis, Characterisation and Analysis of Structurally Imposing Eight-membered Ring Heterocyclic Carbenes written by Wei Lu and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The work reported in this thesis is concerned with the preparation, metal coordination and catalytic applications of expanded eight-membered N-heterocyclic carbenes. This is divided into four chapters, which cover the following areas of research. Chapter One provides the historical and literature overview of synthesis, reactions and catalysis applications for the six- and seven-membered NHCs. Structure and electronic properties of the expanded ring NHC systems are also discussed and compared with their phosphine and five-membered NHC counterparts. Chapter Two focuses on the synthesis and characterisation of symmetrical, unsymmetrical and backbone functionalised eight-membered NHC halide salts and free carbenes. The precursor salts were all prepared by the amidine route while treatment with KHMDS forms the free NHCs. The 8-NHC ring adopts a boat conformation with the backbone folded over the central NHC carbon. Their N-CNHC-N angles are large, ranging between 129° and 131°, with the attendant CNHC-N-CN-substituent angles being very small. Chapter Three describes the synthesis and characterisation of a series of Ag(I), Rh(I), Ir(I) and Ni(I) complexes. Structural analysis of silver-(8-NHC) complexes reveal that these large rings cause the aromatic substituents on the ring nitrogens to bend around and essentially enclose the Ag centre. The percentage buried volume (%Vbur) of silver complexes increases considerably as the ring size expands from 5- to 8-membered NHC, reflecting the high steric demand imposed by the larger ring systems. It was also found that the 8-Mes ligand was too large to coordinate to the [Rh/IrCl(COD)]2 dimer, only the less sterically demanding 8-o-Tol was able to form stable [Rh/IrCl(8-o-Tol)(COD)] complexes. Comparison of CO stretching frequencies for [RhCl(NHC)(CO)2] complexes with 5-, 6-, 7- and 8-membered rings reveal that 8-o-Tol is the most basic of all the NHC ligands. A series of paramagnetic (8-NHC) Ni(I) complexes were prepared also, along with their characterization and EPR analysis. Chapter Four provides the results of catalytic performances for the 8-membered NHC rhodium and iridium complexes in the transfer hydrogenation of ketones. 8-NHC nickel complexes were also tested as catalysts in Suzuki and Kumada cross-coupling reactions.
Book Synopsis Chiral Bidentate N-heterocyclic Carbene Complexes of RH and Pd by : Li Ren
Download or read book Chiral Bidentate N-heterocyclic Carbene Complexes of RH and Pd written by Li Ren and published by . This book was released on 2004 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Functionalised Nucleophilic Heterocyclic Carbene (NHC) Complexes If Silver(I) and Palladium (II) by : David John Nielsen
Download or read book Functionalised Nucleophilic Heterocyclic Carbene (NHC) Complexes If Silver(I) and Palladium (II) written by David John Nielsen and published by . This book was released on 2004 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:
