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Carbenes
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Synthesis and Reactivity of Carbene Complexes of Iron, Ruthenium and Osmium Porphyrins
This dissertation, "Synthesis and Reactivity of Carbene Complexes of Iron, Ruthenium and Osmium Porphyrins" by Yan, Li, 李艷, 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_b3124573 Subjects: Carbenes (Methylene compounds) - Synthesis Ruthenium compounds Iron compounds Complex compounds Porphyrins Osmium compounds
Carbene Chemistry
Carbene Chemistry, Second Edition discusses the developments in various areas of carbene chemistry, including the correlation of spectroscopic studies of isolated carbenes with quantum chemical calculations; new carbene precursors; differentiation of carbenes and carbenoids; and mechanisms of single and triplet carbine reactions. This book is composed of two main parts encompassing 13 chapters. The first part covers the many reactions known to transfer a formally divalent carbon fragment from one molecule to another, with special emphasis on the mechanism and a critical evaluation of the evidence for carbene intermediates. The second part examines the multitude of product-forming reactions of carbenes and carbenoids with various substrates. This part also describes the structure-reactivity relationships for both carbenes and their substrates, followed by a discussion of the applications of carbene compounds in synthetic organic chemistry. This work will be of great value to organic chemists and researchers.
Syntheses, Spectroscopy and Photophysics of Ruthenium(ii) Carbene Complexes and Diimine Complexes with Functionalized Ligands for Molecular Recognition and Organized Assembly
This dissertation, "Syntheses, Spectroscopy and Photophysics of Ruthenium(II) Carbene Complexes and Diimine Complexes With Functionalized Ligands for Molecular Recognition and Organized Assembly" by Wai-kin, Chu, 朱煒堅, 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_b3124008 Subjects: Carbenes (Methylene compounds) - Synthesis Ruthenium compounds - Synthesis
Carbene Chemistry
Highlights recent discoveries in the development of rapid kinetic techniques that allow for direct visualization and state-of-the-art computational methods.
Investigations in the field of carbene-boron chemistry
Diploma Thesis from the year 2003 in the subject Chemistry - Materials Chemistry, grade: 1, Technical University of Braunschweig, language: English, abstract: From a long time ago attempts have been made to isolate carbenes. A big motivation behind the search for a stable carbene was the fact, that oxidation state II is well known for the late members of group 14, germanium, tin and lead. For lead +II is even the most stable oxidation state. Therefore it should be possible to produce a compound containing a carbon in oxidation state II, which is stable enough to be detected and possibly isolated and characterized. Additionally carbenes may be useful as building blocks in organic syntheses. T...
Advances in Metal Carbene Chemistry
There are only few topics in organometallic chemistry, which have stimulated research activities in as many areas, as transition-metal carbene (alkylidene) complexes. About 25 years after the first planned synthesis of a carbene complex in E.O. Fischer's laboratory in Munich the NATO Advanced Research Workshop on Transition-Metal Carbene Complexes was the first meeting which,brought together scientists from different disciplines to discuss inorganic, organic, theoretical structural catalysis-related aspects of metal carbene chemistry. The 70th birthday of Professor E.O. Fischer was a good occasion for this enterprise. The organizers of the meeting (K.D. Dotz, Marburg; F.R. KreiBl, Munchen; U...
Functionalised N-Heterocyclic Carbene Complexes
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 C...
Advances in Carbene Chemistry, Volume 2
Beginning as chemical curiosities, carbenes are now solidly established as reactive intermediates with fascinating and productive research areas of their own. Five decades of divalent carbon chemistry have provided us with a vast repertoire of new, unusual and surprising reactions. Some of those reactions, once classified as exotic, have become standard methods in organic synthesis. These highly reactive carbene species have been harnessed and put to work to achieve difficult synthetic tasks that other reactive intermediates cannot easily perform. The fruitful relationship between experiment and theory has pushed carbene chemistry further toward the direction of reaction control; that is, re...
