Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Stereospecific Nickel Catalyzed Cross Couplings Of Amine And Alcohol Derived Substrates
Download Stereospecific Nickel Catalyzed Cross Couplings Of Amine And Alcohol Derived Substrates full books in PDF, epub, and Kindle. Read online Stereospecific Nickel Catalyzed Cross Couplings Of Amine And Alcohol Derived Substrates ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Stereospecific, Nickel-catalyzed Cross-couplings of Amine and Alcohol Derived Substrates by : Kelsey M. Cobb
Download or read book Stereospecific, Nickel-catalyzed Cross-couplings of Amine and Alcohol Derived Substrates written by Kelsey M. Cobb and published by . This book was released on 2017 with total page 615 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation focuses on nickel-catalyzed cross-couplings of amine and alcohol derivatives to set stereogenic centers. Chapter 1 focuses on the cross-coupling of benzylic ammonium triflates with aryl, heteroaryl, and vinyl boronic acids. This method expands the scope of previous methods from our group, utilizing Ni(cod)2 without any additional phosphine or N-heterocyclic carbene (NHC) ligands. This reaction allows for cross-coupling of both naphthyl and phenyl substituted ammonium salts. The mild conditions of this reaction displays excellent functional group tolerance. ☐ Chapter 2 focuses on the cross-coupling of benzylic ammonium triflates with bis(pinacolato)diboron to afford secondary benzylic boronates with excellent chirality transfer, This reaction utilizes Ni(cod)2 as a catalyst with either phosphine or NHC ligands. The reaction proceeds with mild reaction conditions and excellent functional group tolerance. It allows for the cross-coupling of both naphthyl and phenyl substituted ammonium salts. This is the first example of a Miyaura borylation of a non-allylic electrophile to deliver products in highly enantioenriched form. ☐ Chapter 3 describes the development of the cross-coupling of tertiary benzylic acetates to form all-carbon quaternary stereocenters. This reaction prioritizes the use of an air-stable nickel(II) catalyst and environmentally friendly 2-Me-THF. The mild reaction conditions allow for excellent functional group tolerance. The reaction provides an efficient route to both di-aryl and tri-aryl quaternary stereocenters in high stereochemical fidelity. This method shows an expansion in transition metal catalysis to go beyond electrophiles adjacent to functional groups such as carbonyls and alkenes, and displays the possibility for tertiary benzylic electrophiles to under go transition metal catalysis. ☐ Chapter 4 focuses on the cross-coupling of enantioenriched allylic pivalates with aryl and heteroaryl borxines to form allylic, all-carbon quaternary stereocenters. This utilizes an air-stable nickel (II) catalyst, and functional group tolerant boroxine coupling partners to afford these quaternary stereocenters with high stereochemical fidelity. This reaction provides a powerful way to readily access allylic quaternary stereocenters with substituted internal alkenes and a variety of functional groups and heteroatoms in high yield and enantioenrichment
Book Synopsis Nickel-Catalyzed Cross-Coupling Reactions by : Luke Edward Hanna
Download or read book Nickel-Catalyzed Cross-Coupling Reactions written by Luke Edward Hanna and published by . This book was released on 2016 with total page 333 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cross-coupling technology has become an indispensable tool for the rapid and efficient synthesis of complex molecules. Over the past few decades a foundational understanding of organometallic chemistry has been laid using palladium and other precious metals. Recent research on first row base metal catalysts such as nickel, cobalt and iron has uncovered new and complementary modes of reactivity compared to their more well-studied precious metal counterparts. While nickel sits one row above palladium on the periodic table, ongoing research has illustrated that nickel possesses a unique reactivity profile. Thus, while nickel is commonly thought of as a cheaper alternative to palladium, research in the field of nickel catalysis has demonstrated far more potential than this. The unique propensity of nickel to undergo single electron chemistry as well as its ability to break strong carbon oxygen bonds make research into nickel reactivity an immensely beneficial endeavor to the fields of inorganic, organometallic and synthetic organic chemistry.Chapter 1 describes the development of a stereospecific Suzuki coupling of benzylic carbamates and pivalates with aryl- and heteroarylboronic esters. The reaction proceeds with selective inversion or retention at the electrophilic carbon, depending on the identity of the ligand used. Tricyclohexylphosphine ligand provides products with retention of configuration at the electrophilic carbon, while an N-heterocyclic carbene ligand SIMes provides products with inversion.Chapter 2 discusses the development of a regio- and stereoselective nickel-catalyzed hydroarylation of alkynes using propargylic carbamates as directing groups. The reaction proceeds under mild reaction conditions using arylboronic acids in the absence of base. A range of heterocycles and functional groups are tolerated under the reaction conditions. Additionally, the method is applied to the synthesis of tamoxifen.Chapter 3 details a nickel-catalyzed cross-electrophile coupling reaction of benzylic esters and aryl halides. Both inter- and intramolecular variants proceed under mild reaction conditions. A range of heterocycles and functional groups are tolerated under the reaction conditions. Additionally, the first example of a stereospecific cross-electrophile coupling of a secondary benzylic ester is described.Chapter 4 presents secondary benzylzinc reagents generated from 2-pyridylcarbinols using a nickel catalyst and diethylzinc. Substrates are activated in situ using a chlorophosphate reagent. Quenching the organozinc reagents allows for facile deoxygenation of 2-pyridylcarbinols in a one-pot reaction with straightforward incorporation of a deuterium label from deuteromethanol. An intramolecular conjugate addition of a secondary benzylzinc reagent with an alpha,beta-unsaturated ester is also demonstrated.
Book Synopsis Applied Cross-Coupling Reactions by : Yasushi Nishihara
Download or read book Applied Cross-Coupling Reactions written by Yasushi Nishihara and published by Springer Science & Business Media. This book was released on 2012-12-14 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: “Applied Cross-Coupling Reactions” provides students and teachers of advanced organic chemistry with an overview of the history, mechanisms and applications of cross-coupling reactions. Since the discovery of the transition-metal-catalyzed cross-coupling reactions in 1972, numerous synthetic uses and industrial applications have been developed. The mechanistic studies of the cross-coupling reactions have disclosed that three fundamental reactions: oxidative addition, transmetalation, and reductive elimination, are involved in a catalytic cycle. Cross-coupling reactions have allowed us to produce a variety of compounds for industrial purposes, such as natural products, pharmaceuticals, liquid crystals and conjugate polymers for use in electronic devices. Indeed, the Nobel Prize for Chemistry in 2010 was awarded for work on cross-coupling reactions. In this book, the recent trends in cross-coupling reactions are also introduced from the point of view of synthesis design and catalytic activities of transition-metal catalysts.
Book Synopsis Nickel Catalysis in Organic Synthesis by : Sensuke Ogoshi
Download or read book Nickel Catalysis in Organic Synthesis written by Sensuke Ogoshi and published by John Wiley & Sons. This book was released on 2020-03-09 with total page 348 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive reference to nickel chemistry for every scientist working with organometallic catalysts Written by one of the world?s leading reseachers in the field, Nickel Catalysis in Organic Synthesis presents a comprehensive review of the high potential of modern nickel catalysis and its application in synthesis. Structured in a clear and assessible manner, the book offers a collection of various reaction types, such as cross-coupling reactions, reactions for the activation of unreactive bonds, carbon dioxide fixation, and many more. Nickel has been recognized as one of the most interesting transition metals for homogeneous catalysis. This book offers an overview to the recently developed new ligands, new reaction conditions, and new apparatus to control the reactivity of nickel catalysts, allowing scientists to apply nickel catalysts to a variety of bond-forming reactions. A must-read for anyone working with organometallic compounds and their application in organic synthesis, this important guide: -Reviews the numerous applications of nickel catalysis in synthesis -Explores the use of nickel as a relatively cheap and earth-abundant metal -Examines the versatility of nickel catalysis in reactions like cross-coupling reactions and CH activations -Offers a resource for academics and industry professionals Written for catalytic chemists, organic chemists, inorganic chemists, structural chemists, and chemists in industry, Nickel Catalysis in Organic Synthesis provides a much-needed overview of the most recent developments in modern nickel catalysis and its application in synthesis.
Book Synopsis Modern Organonickel Chemistry by : Yoshinao Tamaru
Download or read book Modern Organonickel Chemistry written by Yoshinao Tamaru and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 346 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organonickel chemistry plays an increasingly important role in organic chemistry, and interest in this topic is now just as keen as in organopalladium chemistry. While there are numerous, very successful books on the latter, a book specializing in organonickel chemistry is long overdue. Edited by one of the leading experts in the field, this volume covers the many discoveries made over the past 30 years, and previously scattered throughout the literature. Active researchers working at the forefront of organonickel chemistry provide a comprehensive review of the topic, including cross-coupling reactions, asymmetric synthesis and heterogeneous catalysis reaction types. A must-have for both organometallic chemists and synthetic organic chemists.
Book Synopsis Amide Bond Activation by : Michal Szostak
Download or read book Amide Bond Activation written by Michal Szostak and published by MDPI. This book was released on 2019-07-12 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt: The amide bond represents a privileged motif in chemistry. The recent years have witnessed an explosion of interest in the development of new chemical transformations of amides. These developments cover an impressive range of catalytic N–C bond activation in electrophilic, Lewis acid, radical, and nucleophilic reaction pathways, among other transformations. Equally relevant are structural and theoretical studies that provide the basis for chemoselective manipulation of amidic resonance. This monograph on amide bonds offers a broad survey of recent advances in activation of amides and addresses various approaches in the field.
Book Synopsis Organozinc Reagents by : Paul Knochel
Download or read book Organozinc Reagents written by Paul Knochel and published by Oxford University Press on Demand. This book was released on 1999 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: This valuable and unique text, written by world-renowned researchers, covers the application of these reagents to organic synthesis. The book is written in a clear and concise manner, containing step-by-step experimental procedures, and should be a valuable resource to new postgraduate students and experienced researchers alike.
Book Synopsis Side Reactions in Organic Synthesis by : Florencio Zaragoza Dörwald
Download or read book Side Reactions in Organic Synthesis written by Florencio Zaragoza Dörwald and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 389 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most syntheses in the chemical research laboratory fail and usually require several attempts before proceeding satisfactorily. Failed syntheses are not only discouraging and frustrating, but also cost a lot of time and money. Many failures may, however, be avoided by understanding the structure-reactivity relationship of organic compounds. This textbook highlights the competing processes and limitations of the most important reactions used in organic synthesis. By allowing chemists to quickly recognize potential problems this book will help to improve their efficiency and success-rate. A must for every graduate student but also for every chemist in industry and academia. Contents: 1 Organic Synthesis: General Remarks 2 Stereoelectronic Effects and Reactivity 3 The Stability of Organic Compounds 4 Aliphatic Nucleophilic Substitutions: Problematic Electrophiles 5 The Alkylation of Carbanions 6 The Alkylation of Heteroatoms 7 The Acylation of Heteroatoms 8 Palladium-Catalyzed C-C Bond Formation 9 Cyclizations 10 Monofunctionalization of Symmetric Difunctional Substrates
Download or read book Boronic Acids written by Dennis G. Hall and published by John Wiley & Sons. This book was released on 2006-05-12 with total page 571 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the first time, the whole field of organoboronic acids is presented in one comprehensive handbook. Professor Dennis Hall, a rising star within the community, covers all aspects of this important substance class, including applications in chemistry, biology and medicine. Starting with an introduction to the structure, properties, and preparation of boronic acid derivatives, together with an overview of their reactions and applications, the book goes on to look at metal-catalyzed borylation of alkanes and arenas, coupling reactions and rhodium-catalyzed additions of boronic acids to alkenes and carbonyl compounds. There follows chapters on copper-promoted C-O and C-N cross-coupling of boronic acids, recent applications in organic synthesis, as well as alpha-haloalkylboronic esters in asymmetric synthesis. Later sections deal with cycloadditions, organoboronic acids, oxazaborolidines as asymmetric inducers, and boronic acid based receptors and sensors. The whole is rounded off with experimental procedures, making this invaluable reading for organic, catalytic and medicinal chemists, as well as those working in organometallics.
Book Synopsis Applications of Transition Metal Catalysis in Drug Discovery and Development by : Matthew L. Crawley
Download or read book Applications of Transition Metal Catalysis in Drug Discovery and Development written by Matthew L. Crawley and published by John Wiley & Sons. This book was released on 2012-05-14 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on the drug discovery and development applications of transition metal catalyzed processes, which can efficiently create preclinical and clinical drug candidates as well as marketed drugs. The authors pay particular attention to the challenges of transitioning academically-developed reactions into scalable industrial processes. Additionally, the book lays the groundwork for how continued development of transition metal catalyzed processes can deliver new drug candidates. This work provides a unique perspective on the applications of transition metal catalysis in drug discovery and development – it is a guide, a historical prospective, a practical compendium, and a source of future direction for the field.
Book Synopsis Stereoselective Alkene Synthesis by : Jianbo Wang
Download or read book Stereoselective Alkene Synthesis written by Jianbo Wang and published by Springer. This book was released on 2012-08-13 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stereoselective Synthesis of Tetrasubstituted Alkenes via Torquoselectivity-Controlled Olefination of Carbonyl Compounds with Ynolates, by Mitsuru Shindo and Kenji Matsumoto.- Stereoselective Synthesis of Z-Alkenes, by Woon-Yew Siau, Yao Zhang and Yu Zhao.- Stereoselective Synthesis of Mono-fluoroalkenes, by Shoji Hara.- Recent Advances in Stereoselective Synthesis of 1,3-Dienes, by Michael De Paolis, Isabelle Chataigner and Jacques Maddaluno.- Selective Olefination of Carbonyl Compounds via Metal-Catalyzed Carbene Transfer from Diazo Reagents, by Yang Hu and X. Peter Zhang.- Selective Alkene Metathesis in the Total Synthesis of Complex Natural Product, by Xiaoguang Lei and Houhua Li.- Olefination Reactions of Phosphorus-Stabilized Carbon Nucleophiles, by Yonghong Gu and Shi-Kai Tian.- Alkene Synthesis Through Transition Metal-Catalyzed Cross-Coupling of N-Tosylhydrazones, by Yan Zhang and Jianbo Wang.
Book Synopsis Biphasic Chemistry and The Solvent Case by : Jean-Philippe Goddard
Download or read book Biphasic Chemistry and The Solvent Case written by Jean-Philippe Goddard and published by John Wiley & Sons. This book was released on 2020-01-09 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biphasic Chemistry and The Solvent Case examines recent improvements in reaction conditions, in order to affirm the role of chemistry in the sustainable field. This book shows that those who work within the chemistry industry support limits for the use of toxic or flammable solvents, since it reduces the purifications to simple filtrations. Thanks to commercial scavengers, solid phase syntheses are now available to all. Fluorine biphasic catalysis enables extremely efficient catalyst recycling and has a high applicability potential at the industrial level. This book also reviews the many studies that have shown that water is a solvent of choice for most synthetic reactions. Particular traits can be obtained and the effects on thermodynamics make it possible to operate at lower temperatures, thereby achieving energy savings. Finally the great diversity of application of the reactions without solvents is illustrated.
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 The logic of chemical synthesis by : E.J. Corey
Download or read book The logic of chemical synthesis written by E.J. Corey and published by Рипол Классик. This book was released on 1991 with total page 447 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Metal Catalyzed Cross-Coupling Reactions and More by : Armin de Meijere
Download or read book Metal Catalyzed Cross-Coupling Reactions and More written by Armin de Meijere and published by John Wiley & Sons. This book was released on 2013-12-04 with total page 1640 pages. Available in PDF, EPUB and Kindle. Book excerpt: This three volume book is the follow-up handbook to the bestselling volume "Metal-Catalyzed Cross-Coupling Reactions", the definitive reference in the field. In line with the enormous developments in this area, this is not a new edition, but rather a new book in three volumes with over 50% more content. This new content includes C-H activation, shifting the focus away from typical cross-coupling reactions, while those topics and chapters found in de Meijere/Diederich's book have been updated and expanded. With its highly experienced editor team and the list of authors reading like an international Who's-Who in the field, this work will be of great interest to every synthetic chemist working in academia and industry.
Download or read book Iron Catalysis written by Bernd Plietker and published by Springer Science & Business Media. This book was released on 2011-01-05 with total page 227 pages. Available in PDF, EPUB and Kindle. Book excerpt: Juan I. Padrón and Víctor S. Martín: Catalysis by means of Fe-based Lewis acids; Hiroshi Nakazawa*, Masumi Itazaki: Fe–H Complexes in Catalysis; Kristin Schröder, Kathrin Junge, Bianca Bitterlich, and Matthias Beller: Fe-catalyzed Oxidation Reactions of Olefins, Alkanes and Alcohols: Involvement of Oxo- and Peroxo Complexes; Chi-Ming Che, Cong-Ying Zhou, Ella Lai-Ming Wong: Catalysis by Fe=X Complexes (X=NR, CR2); René Peters, Daniel F. Fischer and Sascha Jautze: Ferrocene and Half Sandwich Complexes as Catalysts with Iron Participation; Markus Jegelka, Bernd Plietker: Catalysis by Means of Complex Ferrates.
Book Synopsis Total Synthesis of Natural Products by : Jie Jack Li
Download or read book Total Synthesis of Natural Products written by Jie Jack Li and published by Springer Science & Business Media. This book was released on 2013-03-14 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: 'Total Synthesis of Natural Products' is written and edited by some of today's leaders in organic chemistry. Eleven chapters cover a range of natural products, from steroids to alkaloids. Each chapter contains an introduction to the natural product in question, descriptions of its biological and pharmacological properties and outlines of total synthesis procedures already carried out. Particular emphasis is placed on novel methodologies developed by the respective authors and their research groups. This text is ideal for graduate and advanced undergraduate students, as well as organic chemists in academia and industry.
