New Bifunctional Catalysts for the Asymmetric Morita-Baylis-Hillman Reaction PDF Download
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Author: Cécile Magaly Mocquet
Publisher:
ISBN:
Category :
Languages : en
Pages : 406
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Author: Cécile Magaly Mocquet
Publisher:
ISBN:
Category :
Languages : en
Pages : 406
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Author: Richard Williams
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Koichi Mikami
Publisher: John Wiley & Sons
ISBN: 047009799X
Category : Science
Languages : en
Pages : 436
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Book Description
A compilation of recent advances and applications in asymmetric catalysis The field of asymmetric catalysis has grown rapidly and plays a key role in drug discovery and pharmaceuticals. New Frontiers in Asymmetric Catalysis gives readers a fundamental understanding of the concepts and applications of asymmetric catalysis reactions and discusses the latest developments and findings. With contributions from preeminent scientists in their respective fields, it covers: * "Rational" ligand design, which is critically dependent on the reaction type (reduction, oxidation, and C-C bond formation) * Recent findings on activation of C-H bonds, C-C bonds, and small molecules (C=O, HCN, RN=C, and CO2) and the latest developments on C-C bond reorganization, such as metathesis * Advances in "chirally economical" non-linear phenomena, racemic catalysis, and autocatalysis * Some of the recent discoveries that have led to a renaissance in the field of organocatalysis, including the development of chiral Brönstead acids and Lewis acidic metals bearing the conjugate base of the Brönstead acids as the ligands and the chiral bi-functional acid/base catalysts The book ends with a thought-provoking perspective on the future of asymmetric catalysis that addresses both the challenges and the unlimited potential in this burgeoning field. This is an authoritative, up-to-date reference for organic chemists in academia, government, and industries, including pharmaceuticals, biotech, fine chemicals, polymers, and agriculture. It is also an excellent textbook for graduate students studying advanced organic chemistry or chemical synthesis.
Author: Michelangelo Gruttadauria
Publisher: John Wiley & Sons
ISBN: 0470641363
Category : Science
Languages : en
Pages : 720
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Book Description
This book covers advances in the methods of catalytic asymmetric synthesis and their applications. Coverage moves from new materials and technologies to homogeneous metal-free catalysts and homogeneous metal catalysts. The applications of several methodologies for the synthesis of biologically active molecules are discussed. Part I addresses recent advances in new materials and technologies such as supported catalysts, supports, self-supported catalysts, chiral ionic liquids, supercritical fluids, flow reactors and microwaves related to asymmetric catalysis. Part II covers advances and milestones in organocatalytic, enzymatic and metal-based mediated asymmetric synthesis, including applications for the synthesis of biologically active molecules. Written by leading international experts, this book consists of 16 chapters with 2000 References and illustrations of 560 schemes and figures.
Author: Iwao Ojima
Publisher: John Wiley & Sons
ISBN: 1118678443
Category : Science
Languages : en
Pages : 1043
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Book Description
Praise for the previous editions "An excellent text . . . will no doubt provide the benchmark for comparative works for many years." —Journal of the American Chemical Society "An excellent state-of-the-art compilation of catalytic asymmetric chemistry . . . should be included in any chemistry reference collection." —Choice "This is a tremendous resource and an excellent read. I recommend immediate purchase." —Perkin Transactions Since this important work was first published in 1993, the field of catalytic asymmetric synthesis has grown explosively, spawning effective new methods for obtaining enantiomerically pure compounds on a large scale and stimulating new applications in diverse fields—from medicine to materials science. Catalytic Asymmetric Synthesis, Third Edition addresses these rapid changes through contributions from highly recognized world leaders in the field. This seminal text presents detailed accounts of the most important catalytic asymmetric reactions known today, and discusses recent advances and essential information on the initial development of certain processes. An excellent working resource for academic researchers and industrial chemists alike, the Third Edition features: Six entirely new chapters focusing on novel approaches to catalytic asymmetric synthesis including non-conventional media/conditions, organocatalysis, chiral Lewis and Bronsted acids, CH activation, carbon-heteroatom bond-forming reactions, and enzyme-catalyzed asymmetric synthesis A new section focusing on the important new reaction, asymmetric metathesis, in carbon-carbon bond-forming reactions Updated chapters on hydrogenation, carbon-carbon bond-forming reactions, hydrosilylations, carbonylations, oxidations, amplifications and autocatalysis, and polymerization reactions Retaining the best of its predecessors but now thoroughly up to date, Catalytic Asymmetric Synthesis, Third Edition serves as an excellent desktop reference and text for researchers and students from the upper-level undergraduates through experienced professionals in industry or academia.
Author: René Peters
Publisher: John Wiley & Sons
ISBN: 3527681043
Category : Technology & Engineering
Languages : en
Pages : 452
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Book Description
Written by experts in the field, this is a much-needed overview of the rapidly emerging field of cooperative catalysis. The authors focus on the design and development of novel high-performance catalysts for applications in organic synthesis (particularly asymmetric synthesis), covering a broad range of topics, from the latest progress in Lewis acid / Br?nsted base catalysis to e.g. metal-assisted organo catalysis, cooperative metal/enzyme catalysis, and cooperative catalysis in polymerization reactions and on solid surfaces. The chapters are classified according to the type of cooperating activating groups, and describe in detail the different strategies of cooperative activation, highlighting their respective advantages and pitfalls. As a result, readers will learn about the different concepts of cooperative catalysis, their corresponding modes of operation and their applications, thus helping to find a solution to a specific synthetic catalysis problem.
Author: Yan Zhou
Publisher:
ISBN:
Category :
Languages : en
Pages : 223
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Book Description
Part I. Synthesis and Application of Cyclopentadienones Part II. Bifunctional Organocatalysts Abstract by Yan Zhou Cyclopentadienones have a high potential for organic synthesis. Cyclopentadienones can be formed by cyclocarbonylation of alkynes. After a pioneering work of CpCo(PPh3)2-mediated alkyne-alkyne coupling, RhCl(PPh3)3-, Cp(Co(CO)2-, Fe(CO)5-, and IrCl(CO)(PPh3)2-mediated alkyne-alkyne couplings were reported for the synthesis of cyclopentadienones. But most of these procedures require harsh conditions, such as high temperature (>120atC) and high pressure of carbon monoxide. Therefore, for those thermally unstable substrates, these methods show low yields. The objective of this project is to find new transition metal catalysts, which can promote cyclocarbonylation of alkynes to form cyclopentadienones more efficiently and practically. Molybdenum carbonyl complexes show good activity in Pauson-Khand reactions. Encouraged by these results, molybdenum carbonyl complexes were examined in cyclocarbonylation of alkynes. However it was found that disappointing yields were obtained in most cases. Among reactions of cyclopentadienones, Diels-Alder reactions are the most extensively studied. Cyclopentadienones can react as dienes in Diels-Alder reactions with dienophiles. Previous work in our laboratory has shown that monocyclic cyclopentadienones, which are obtained from silicon tethered Fe(CO)5-promoted cyclocarbonylation of alkynes, are good candidates for preparing aromatic and biaryl structures via Diels-Alder type reactions and subsequent thermal decarbonylation. In this study, we have evaluated and expanded Diels-Alder applications on cyclopentadienones. The biaryl structures formed by this methodology could find use as intermediates in the synthesis of complex molecules. A new trend in organocatalyst design is to develop catalysts possessing two or more reaction promoting functionalities. Development of these organocatalysts is of ongoing interest in asymmetric synthesis. In Part II, new acid-base bifunctional organocatalysts are designed for asymmetric reactions, such as aldol reaction, Michael addition, Morita-Baylis-Hillman reaction, Mannich reaction and so on. Preliminary results are reported for the synthesis of the potential catalysts.
Author: Min Shi
Publisher: Royal Society of Chemistry
ISBN: 1849731292
Category : Science
Languages : en
Pages : 575
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Book Description
Aimed at graduate students and experienced chemists, in both academic and industrial laboratories, this book covers the Morita-Baylis-Hillman-type reactions.
Author: Ramon Rios Torres
Publisher: John Wiley & Sons
ISBN: 1118604709
Category : Science
Languages : en
Pages : 581
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Book Description
Sets forth an important group of environmentally friendly organic reactions With contributions from leading international experts in organic synthesis, this book presents all the most important methodologies for stereoselective organocatalysis, fully examining both the activation mode as well as the type of bond formed. Clear explanations guide researchers through all the most important methods used to form key chemical bonds, including carbon-carbon (C–C), carbon-nitrogen (C–N), and carbon-halogen (C–X) bonds. Moreover, readers will discover how the use of non-metallic catalysts facilitates a broad range of important reactions that are environmentally friendly and fully meet the standards of green chemistry. Stereoselective Organocatalysis begins with an historical overview and a review of activation modes in asymmetric organocatalysis. The next group of chapters is organized by bond type, making it easy to find bonds according to their applications. The first of these chapters takes a detailed look at the many routes to C–C bond formation. Next, the book covers: Organocatalytic C–N bond formation C–O bond formation C–X bond formation C–S, C–Se, and C–B bond formation Enantioselective organocatalytic reductions Cascade reactions forming both C–C bonds and C–heteroatom bonds The final chapter is devoted to the use of organocatalysis for the synthesis of natural products. All the chapters in the book are extensively referenced, serving as a gateway to the growing body of original research reports and reviews in the field. Based on the most recent findings and practices in organic synthesis, Stereoselective Organocatalysis equips synthetic chemists with a group of organocatalytic reactions that will help them design green reactions and overcome many challenges in organic synthesis.
Author: K. Maruoka
Publisher: Georg Thieme Verlag
ISBN: 3131790210
Category : Science
Languages : en
Pages : 1437
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Book Description
Asymmetric Organocatalysis 2 from the Science of Synthesis series gives an authoritative, broad overview of the field, compiled by 3 8 experts, as well as a critical presentation of the best organocatalytic and related methodologies available today for practical as ymmetric synthesis. It provides alternative, greener syntheses with simple and easily used catalysts helping avoid the use of expens ive and/or toxic metals. The reference work covers all the catalysts and reactions within the activation modes Brønsted base catalys is and Brønsted acid catalysis. Typical or general experimental procedures as well as mechanistic, technical and theoretical aspects are included, allowing the reader to clearly see how simple, clean and efficient this chemistry is. // The content of this e-book w as originally published in December 2011.
