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Download or read book Asymmetric Syntheses Via Heterocyclic Intermediates (VII) written by and published by . This book was released on 1981 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ulrich Schöllkopf
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (958 download)
Download or read book Asymmetric Syntheses Via Heterocyclic Intermediates (VIII) written by Ulrich Schöllkopf and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ulrich Groth
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (958 download)
Download or read book Asymmetric Syntheses Via Heterocyclic Intermediates. 13. Enantioselective Synthesis of (R)-alpha-Alkenylalanine Methyl Esters Using L-Valine as Chiral Auxiliary Reagent written by Ulrich Groth and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Asymmetric Syntheses Via Heterocyclic Intermediates. 22. Enantioselective Synthesis of Alpha-alkenyl Glycine Methyl Esters and Alphy-alkenyl Glycines (beta, Gamma-unsaturated Amino Acids) written by and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Asymmetric Syntheses Via Heterocyclic Intermediates (XVII) written by and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Ulrich Schöllkopf
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (958 download)
Download or read book Asymmetric Syntheses Via Heterocyclic Intermediates. 22. Enantioselective Synthesis of Alpha-alkenyl Glycine Methyl Esters and Alphy-alkenyl Glycines (beta,gamma-unsaturated Amino Acids) written by Ulrich Schöllkopf and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Manfred Braun
Publisher : Springer Nature
ISBN 13 : 3030453049
Total Pages : 326 pages
Book Rating : 4.0/5 (34 download)
Download or read book Heterocycles as Chiral Auxiliaries in Asymmetric Synthesis written by Manfred Braun and published by Springer Nature. This book was released on 2020-12-08 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field. All chapters from Topics in Heterocyclic Chemistry are published Online First with an individual DOI. In references, Topics in Heterocyclic Chemistry is abbreviated as Top Heterocycl Chem and cited as a journal.
Author : Jacques Royer
Publisher : John Wiley & Sons
ISBN 13 : 3527625518
Total Pages : 425 pages
Book Rating : 4.5/5 (276 download)
Download or read book Asymmetric Synthesis of Nitrogen Heterocycles written by Jacques Royer and published by John Wiley & Sons. This book was released on 2009-08-04 with total page 425 pages. Available in PDF, EPUB and Kindle. Book excerpt: Here, all aspects of the topic are presented in a compact manner. The book is clearly structured, and divided into two sections -- asymmetric synthesis of heterocycles containing only one nitrogen and that of those with more than one nitrogen as a heteroatom -- such that the necessary information may be found at a glance. The international team of authors provides important experimental procedures, including industrial applications. Essential for synthetic chemists in pharmaceutical and agrochemical chemistry.
Author : Kengadarane Anebouselvy
Publisher : Royal Society of Chemistry
ISBN 13 : 1782620907
Total Pages : 220 pages
Book Rating : 4.7/5 (826 download)
Download or read book Dienamine Catalysis for Organic Synthesis written by Kengadarane Anebouselvy and published by Royal Society of Chemistry. This book was released on 2018-03-02 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the last decade a new era in asymmetric catalysis has been realised by the discovery of L-proline induced chiral enamines from carbonyls. Inspired by this, researchers have developed many other primary catalytic species in situ, more recently secondary catalytic species such as aminals have been identified for use in asymmetric synthesis. High-yielding asymmetric synthesis of bioactive and natural products through mild catalysis is an efficient approach in reaction engineering. In the early days, synthetic chemists mainly focused on the synthesis of complex molecules, with less attention on the reaction efficiency and eco-friendly conditions. Recent investigations have been directed towards the development of atom economy, eco-friendly and enantioselective synthesis for more targeted and efficient synthesis. Building on the momentum of this rapidly expanding research area, Dienamine catalysis for organic synthesis will provide a comprehensive introduction, from the preformed species, in situ generation and onto their applications in the synthesis of bioactive molecules and natural products.
Author : Alfred Hassner
Publisher : Springer
ISBN 13 : 3540783717
Total Pages : 239 pages
Book Rating : 4.5/5 (47 download)
Download or read book Synthesis of Heterocycles via Cycloadditions I written by Alfred Hassner and published by Springer. This book was released on 2008-04-10 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterocyclic chemistry is the biggest branch of chemistry covering two-thirds of the chemical literature. This series covers hot topics of frontier research summarized by reputed scientists in the field.
Author : Iwao Ojima
Publisher : John Wiley & Sons
ISBN 13 : 047122054X
Total Pages : 879 pages
Book Rating : 4.4/5 (712 download)
Download or read book Catalytic Asymmetric Synthesis written by Iwao Ojima and published by John Wiley & Sons. This book was released on 2004-08-27 with total page 879 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the reviews of the First Edition . . . "An excellent text . . . will no doubt provide the benchmark for comparative works for many years."-Journal of the American Chemical Society "A resounding success . . . the definitive current summaries on their respective subjects."-Synthesis 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, Second Edition addresses these rapid changes through new or substantially revised contributions from highly recognized world leaders in the field. It presents detailed accounts of the most important catalytic asymmetric reactions known today, discusses recent advances, and retains from the previous edition essential and intriguing information on the initial development of certain processes. An excellent working resource for academic researchers and industrial chemists alike, the Second Edition features: * Contributions from Noyori, Sharpless, Kagan, Trost, Overman, Shibasaki, Doyle, Okamoto, Bolm, Carreira, and many other internationally renowned authorities * New chapters on asymmetric carbometallations, asymmetric amplification and autocatalysis, and asymmetric polymerization * Extended coverage of asymmetric carbene reactions, including asymmetric intramolecular carbene insertion to C-H bonds as well as asymmetric dihydroxylation and aminohydroxylation * Extended coverage of asymmetric carbon-carbon bond-forming reactions and applications * An appendix listing all chiral ligands in the book
Author : Robert E. Gawley
Publisher : Elsevier
ISBN 13 : 0080914136
Total Pages : 569 pages
Book Rating : 4.0/5 (89 download)
Download or read book Principles of Asymmetric Synthesis written by Robert E. Gawley and published by Elsevier. This book was released on 2012-05-29 with total page 569 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is chiral. Most of the molecules in it are chiral, and asymmetric synthesis is an important means by which enantiopure chiral molecules may be obtained for study and sale. Using examples from the literature of asymmetric synthesis, this book presents a detailed analysis of the factors that govern stereoselectivity in organic reactions. After an explanation of the basic physical-organic principles governing stereoselective reactions, the authors provide a detailed, annotated glossary of stereochemical terms. A chapter on "Practical Aspects of Asymmetric Synthesis" provides a critical overview of the most common methods for the preparation of enantiomerically pure compounds, techniques for analysis of stereoisomers using chromatographic, spectroscopic, and chiroptical methods. The authors then present an overview of the most important methods in contemporary asymmetric synthesis organized by reaction type. Thus, there are four chapters on carbon-carbon bond forming reactions, one chapter on reductions, and one on oxidations (carbon-oxygen and carbon-nitrogen bond forming reactions). This organization allows the reader to compare the leading methods for asymmetric synthesis in an appropriate context. A highlight of the book is the presentation and discussion of transition states at the current level of understanding, for important reaction types. In addition, extensive tables of examples are used to give the reader an appreciation for the scope of each reaction. Finally, leading references are provided to natural product synthesis that has been accomplished using a given reaction as a key step. - Authoritative glossary to aid understanding of stereochemical terminology - Explanations of the key factors influencing stereoselectivity with numerous examples, organized by reaction type - A handy reference guide to the literature of asymmetric synthesis for practitioners in the field
Author : Guo-Qiang Lin
Publisher : John Wiley & Sons
ISBN 13 : 0471465240
Total Pages : 536 pages
Book Rating : 4.4/5 (714 download)
Download or read book Principles and Applications of Asymmetric Synthesis written by Guo-Qiang Lin and published by John Wiley & Sons. This book was released on 2003-05-29 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt: Asymmetric synthesis remains a challenge to practicing scientistsas the need for enantiomerically pure or enriched compoundscontinues to increase. Over the last decade, a large amount ofliterature has been published in this field. Principles andApplications of Asymmetric Synthesis consolidates and evaluates themost useful methodologies into a one-volume resource for theconvenience of practicing scientists and students. Authored by internationally renowned scientists in the field, thisreliable reference covers more than 450 reactions and includesimportant stoichiometric as well as catalytic asymmetric reactions.The first chapter reviews the basic principles, commonnomenclature, and analytical methods, and the remainder of the bookis organized according to reaction type. The text examines suchtopics as: Carbon-carbon bond formations involving carbonyls, enamines,imines, and enolates Asymmetric C-O bond formations including epoxidation,dihydroxylation, and aminohydroxylation Asymmetric synthesis using the Diels-Alder reaction and othercyclizations Applications to the total synthesis of natural products Use of enzymes in asymmetric synthesis Practicing chemists in the pharmaceutical, fine chemical, andagricultural professions as well as graduate students will findthat Principles and Applications of Asymmetric Synthesis affordscomprehensive and current coverage.
Author : Bagher Eftekhari-Sis
Publisher : CRC Press
ISBN 13 : 1000733912
Total Pages : 290 pages
Book Rating : 4.0/5 (7 download)
Download or read book Aromatic C(sp2)−H Dehydrogenative Coupling Reactions written by Bagher Eftekhari-Sis and published by CRC Press. This book was released on 2019-10-31 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This comprehensive text covers the research and development trends in the growing field of aromatic C–H dehydrogenative coupling reactions, leading to different types of heterocycles. The author provides answers to how these coupling reactions occur, what kinds of heterocycles are synthesized, and what their advantages are. The palladium-, rhodium-, iridium-, copper-, cobalt-, ruthenium-, and ferric-catalyzed aromatic C(sp2)–H dehydrogenative cross-coupling reactions are described in detail. A useful reference source for researchers and graduates in the field of heterocyclic chemistry and transition-metal-catalyzed dehydrogenative coupling reactions. Features: Comprehensive volume on the synthesis of benzo-heterocycles via aromatic C(sp2)–H bond activation. Heterocycles are of paramount importance to medicinal chemistry and drug discovery. Provides a comprehensive literature survey on the construction of heterocycles. Reaction procedures and mechanistic explanations are included, which will appeal to those in fine chemicals and pharmaceutical companies.
Author : R.E. Gawley
Publisher : Elsevier
ISBN 13 : 0080514774
Total Pages : 395 pages
Book Rating : 4.0/5 (85 download)
Download or read book Principles of Asymmetric Synthesis written by R.E. Gawley and published by Elsevier. This book was released on 1996-11-21 with total page 395 pages. Available in PDF, EPUB and Kindle. Book excerpt: The world is chiral. Most of the molecules in it are chiral, and asymmetric synthesis is an important means by which enantiopure chiral molecules may be obtained for study and sale. Using examples from the literature of asymmetric synthesis (more than 1300 references), the aim of this book is to present a detailed analysis of the factors that govern stereoselectivity in organic reactions. It is important to note that the references were each individually checked by the authors to verify relevance to the topics under discussion. The study of stereoselectivity has evolved from issues of diastereoselectivity, through auxiliary-based methods for the synthesis of enantiomerically pure compounds (diastereoselectivity followed by separation and auxiliary cleavage), to asymmetric catalysis. In the latter instance, enantiomers (not diastereomers) are the products, and highly selective reactions and modern purification techniques allow preparation - in a single step - of chiral substances in 99% ee for many reaction types. After an explanation of the basic physical-organic principles of stereoselectivity, the authors provide a detailed, annotated glossary of stereochemical terms. A chapter on "Analytical Methods" provides a critical overview of the most common methods for analysis of stereoisomers. The authors then follow the 'tried-and-true' format of grouping the material by reaction type. Thus, there are four chapters on carbon-carbon bond forming reactions (enolate alkylations, organometal additions to carbonyls, aldol and Michael reactions, and cycloadditions and rearrangements), one chapter on reductions and hydroborations (carbon-hydrogen bond forming reactions), and one on oxidations (carbon-oxygen and carbon-nitrogen bond forming reactions). Leading references are provided to natural product synthesis that have been accomplished using a given reaction as a key step. In addition to tables of examples that show high selectivity, a transition state analysis is presented to explain - to the current level of understanding - the stereoselectivity of each reaction. In one case (Cram's rule) the evolution of the current theory is detailed from its first tentative (1952) postulate to the current Felkin-Anh-Heathcock formalism. For other reactions, only the currently accepted rationale is presented. Examination of these rationales also exposes the weaknesses of current theories, in that they cannot always explain the experimental observations. These shortcomings provide a challenge for future mechanistic investigations.
Author : Alfred Hassner
Publisher : Elsevier
ISBN 13 : 0080551998
Total Pages : 376 pages
Book Rating : 4.0/5 (85 download)
Download or read book Advances in Asymmetric Synthesis written by Alfred Hassner and published by Elsevier. This book was released on 1999-02-18 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Enantioselective synthetic methods are not only in the forefront of chemical and pharmaceutical research but activity in this area is constantly increasing. It is stimulated by the urgency to obtain drugs or compounds of medicinal interest as single anantiomers, and the keeness to synthesize natural products in nonracemic form. This volume presents seven chapters from pioneers and authorities in this rapidly expanding field.
Author : Gary M. Coppola
Publisher : Wiley-Interscience
ISBN 13 :
Total Pages : 424 pages
Book Rating : 4.:/5 (32 download)
Download or read book Asymmetric Synthesis written by Gary M. Coppola and published by Wiley-Interscience. This book was released on 1987-01-19 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Presents in a logical, readable manner the synthetic utility of amino acids for the generation of chiral agents, intermediates, and final products by means of asymmetric synthesis. In the past 20 years asymmetric synthesis has forged to the forefront of organic chemistry. This book provides extensive schemes and reactions containing over 1900 structures to illustrate the varied assortment of chiral intermediates that can be generated from amino acids and their derivatives. Focuses on the alpha[l.c. Greek letter]-amino acids and second-generation intermediates that can be derived therefrom which are of general interest to organic chemists, in either the industrial or the academic environment. Special attention has been paid to the asymmetric synthesis of key pharmaceutical agents, agrochemicals, and a host of natural products including alkoloids, terpenoids, carbohydrates, and insect pheromones. Includes extensive and up-to-date references.
