Download or read book Organocatalytic Michael cycloisomerization written by Kyriacos Agapiou and published by . This book was released on 2003 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Organocatalytic Michael Cycloisomerization written by Ronald Thomas Smith and published by . This book was released on 2006 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt: The organocatalytic Michael cycloisomerization has been utilized in both methodological and synthetic chemistry by our research group. This paper investigates the extension of this methodology to other electron deficient alkenes, i.e. nitroalkenes, and their utility in the total synthesis of the classical organic target morphine. The problems and successes encountered en route to the synthetic target as well as the chemistry involved is discussed in detail herein.

Download or read book Organocatalytic Cycloadditions for Synthesis of Carbo and Heterocycles written by Prof. Min Shi and published by John Wiley & Sons. This book was released on 2018-03-27 with total page 604 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive resource to the development and recent progress of zwitterion-oriented cycloadditions promoted by organoamines, organophosphines, N-heterocyclic carbenes Organocatalytic Cycloadditions for Synthesis of Carbo- and Heterocycles offers a clear explanationto thedevelopment of and the information on the latest research pertaining to zwitterion-oriented cycloadditions promoted by organoamines, organophosphines, N-heterocyclic carbenes. The authors—noted experts in the field—include a comprehensive review to the investigations of the reaction mechanisms and explore the synthesis of different products from the same starting materials. Filled with illustrative examples and designed to be accessible, the text shows how to control the chemo-, regio- and stereoselectivity and explains the further design of novel cycloaddition reactions catalyzed by organoamines and organophosphines based on zwitterion-oriented synthetic strategy. This important text: Explains why the formation of carbo- and heterocycles is a key transformation in organic synthesis. Offers a clear description to the development of zwitterion-oriented cycloadditions promoted by organoamines, organophosphines, N-heterocyclic carbenes, and explores the latest research Contains the most current examples involving synthetic transformations of organocatalytic cycloadducts Includes contributions from noted experts in the field of organic synthesis Written for organic chemists, pharmaceutical chemists, chemists in industry, graduates, and librarians, Organocatalytic Cycloadditions for Synthesis of Carbo- and Heterocyclesis is the essential guide to the topic.

Download or read book The Asymmetric Organocatalytic Aza Michael Addition Efforts towards the Total Synthesis of Yuremamine and Development of New Domino Reactions written by Céline Joie and published by . This book was released on 2014 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book New Organocatalytic Strategies for the Selective Synthesis of Centrally and Axially Chiral Molecules written by Nicola Di Iorio and published by Springer. This book was released on 2018-04-11 with total page 173 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis discusses the use of asymmetric organic catalysis for the direct enantioselective synthesis of complex chiral molecules, and by addressing the many aspects of both vinylogy and atropisomerism, it appeals to researchers and scholars interested in both areas. Organocatalysis is a relatively modern and “hot” topic in the chemical community; it is constantly expanding and its use has been extended to interesting areas like vinylogous reactivity and atropisomerism. Vinylogous systems are very important for their synthetic applications but also pose a number of challenges, the most notable of which are their reduced reactivity and the reduced stereocontrol at these positions. On the other hand, atropisomeric systems are even more important because of the huge potential they have as drugs, ligands and catalysts. Chemists have only recently “recognized” the importance of these two areas and are focusing their efforts on studying them and the challenges they pose. This thesis offers an extensive introduction on the general aspects of chirality and organocatalysis and an equally extensive experimental section that allow nonexperts to understand the discussion section and reproduce the experiments.

Download or read book Enantioselective Vinylogous Michael Via Organocatalysis written by Venkatram Reddy R. and published by . This book was released on 2023-10-31 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The vinylogous Michael reaction is a powerful synthetic tool used in the construction of complex organic molecules. Its asymmetric variant, which is catalyzed by chiral organocatalysts, is particularly useful in the synthesis of bioactive molecules and pharmaceuticals. The book covers the underlying principles of organocatalysis, the mechanisms of the vinylogous Michael reaction, and the various types of organocatalysts used in the process. Enantioselective Vinylogous Michael via Organocatalysis provides a comprehensive overview of the state of the art in the field, with contributions from leading researchers in the area. The book also includes detailed experimental procedures, case studies, and practical applications of the vinylogous Michael reaction in the synthesis of various natural and unnatural products. Whether you are a student, researcher, or practitioner in the field of organic chemistry, Enantioselective Vinylogous Michael via Organocatalysis is an essential reference that will provide you with the knowledge and tools needed to explore this fascinating area of research.

Download or read book Supramolecular Catalysis written by Piet W.N.M. van Leeuwen and published by John Wiley & Sons. This book was released on 2022-05-31 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt: Supramolecular Catalysis Provides a timely and detailed overview of the expanding field of supramolecular catalysis The subdiscpline of supramolecular catalysis has expanded in recent years, benefiting from the development of homogeneous catalysis and supramolecular chemistry. Supramolecular catalysis allows chemists to design custom-tailored metal and organic catalysts by devising non-covalent interactions between the various components of the reaction. Edited by two world-renowned researchers, Supramolecular Catalysis: New Directions and Developments summarizes the most significant developments in the dynamic, interdisciplinary field. Contributions from an international panel of more than forty experts address a broad range of topics covering both organic and metal catalysts, including emergent catalysis by self-replicating molecules, switchable catalysis using allosteric effects, supramolecular helical catalysts, and transition metal catalysis in confined spaces. This authoritative and up-to-date volume: Covers ligand-ligand interactions, assembled multi-component catalysts, ligand-substrate interactions, and supramolecular organocatalysis and non-classical interactions Presents recent work on supramolecular catalysis in water, supramolecular allosteric catalysis, and catalysis promoted by discrete cages, capsules, and other confined environments Highlights current research trends and discusses the future of supramolecular catalysis Includes full references and numerous figures, tables, and color illustrations Supramolecular Catalysis: New Directions and Developments is essential reading for catalytic chemists, complex chemists, biochemists, polymer chemists, spectroscopists, and chemists working with organometallics.

Download or read book Organic Chemistry written by Pierre Vogel and published by John Wiley & Sons. This book was released on 2019-07-30 with total page 1382 pages. Available in PDF, EPUB and Kindle. Book excerpt: The know-how about reactivity, reaction mechanisms, thermodynamics and other basics in physical organic chemistry is the key for successful organic reactions. This textbook presents comprehensively this knowledge to the student and to the researcher, too. Includes Q&As.

Download or read book Enantioselective Organocatalysis written by Peter I. Dalko and published by Wiley-VCH. This book was released on 2007-06-27 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this reference leaders at the forefront of research provide an insight into one of the hottest topics in organic synthesis, focusing on the most important enantioselective reactions. Clearly structured, each entry begins with a concise introduction, including a mechanistic discussion of the reaction, followed by preparative guidelines for newcomers, such as carefully selected working procedures with critical notes for bench chemists, rules of thumb and tips and tricks.

Download or read book Journal written by American Chemical Society and published by . This book was released on 2003 with total page 990 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Asymmetric Organocatalysis in Natural Product Syntheses written by Mario Waser and published by Springer Science & Business Media. This book was released on 2012-07-30 with total page 205 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides the reader with an illustrative overview concerning successful and widely used applications of organocatalysis in the field of natural product synthesis. The main focus will be on organocatalytic key-steps for each (multi-step) synthesis described, whereas other often particularly innovative transformations will be omitted, as this would be beyond the scope of this volume.

Download or read book Recent advances in organocatalytic cascade reactions for enantioselective synthesis of chiral spirolactone skeletons written by Jun Yang and published by OAE Publishing Inc.. This book was released on 2023-02-08 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Chiral spirolactones, including spiropropyllactones, spirobutyrolactones, and spirovalerolactones, are important heterocyclic frameworks that attracted the attention of organic and medicinal chemists because these motifs constitute the core structure of several natural products and bioactive molecules. The absolute configuration and the substituents on the fully substituted spirocyclic stereocenter of the lactone can potentially enhance specificity for ligand-protein binding and enhance bioavailability, potency, and metabolic stability. So, intensive attention from chemists has been paid to the synthetic methods leading to such prominent structural motifs. The synthetic methods can be divided into two main classes. The first approach takes advantage of the presence of the existing lactone structure and focuses on its functionalization. The second approach is the lactone framework constructed from various precursors in a direct spirolactonization reaction. In this review, for convenience in reading, the recent advances in the synthesis of spirolactones are summarized and discussed according to the two major organocatalytic asymmetric synthetic routes: (i) using the lactone-related frameworks as building blocks; and (ii) direct spirolactonization reaction using various reagents. This review also describes both the mechanisms and related transformations, and gives some insights into challenging issues in this research field, which will enlighten the future development of this field.

Download or read book Asymmetric Organocatalysis Combined with Metal Catalysis written by Bruce A. Arndtsen and published by Springer Nature. This book was released on 2020-04-24 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience.Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.The chapter "Enamine/Transition Metal Combined Catalysis: Catalytic Transformations Involving Organometallic Electrophilic Intermediates" is available open access under a CC BY 4.0 License via link.springer.com.

Download or read book Enantioselective Organocatalysis written by Peter I. Dalko and published by John Wiley & Sons. This book was released on 2007-06-27 with total page 559 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this reference leaders at the forefront of research provide an insight into one of the hottest topics in organic synthesis, focusing on the most important enantioselective reactions. Clearly structured, each entry begins with a concise introduction, including a mechanistic discussion of the reaction, followed by preparative guidelines for newcomers, such as carefully selected working procedures with critical notes for bench chemists, rules of thumb and tips and tricks.

Download or read book Au Catalyzed Synthesis and Functionalization of Heterocycles written by Marco Bandini and published by Springer. This book was released on 2016-07-01 with total page 294 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

Download or read book Modern Carbonyl Chemistry written by Junzo Otera and published by John Wiley & Sons. This book was released on 2008-11-21 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: The carbonyl group is undoubtedly one of the most important functional groups in organic chemistry, both in its role as reactive center for synthesis or derivatisation and as crucial feature for special structural or physiological properties. Vast and profound progress has been made in all aspects modern carbonyl chemistry. These achievements are, however, rather dispersed in the literature and it is often not easy for the researcher obtain a comprehensive overview of a relevant topic. Modern Carbonyl Chemistry overcomes this inconvenience by collating the information for appropriate themes. In this work internationally renowned experts and leaders in the field have surveyed recent aspects and modern features in carbonyl chemistry, such as cascade-reactions, one-pot-syntheses, recognition, or site differentiation.

Download or read book Quaternary Stereocenters written by Jens Christoffers and published by John Wiley & Sons. This book was released on 2006-05-12 with total page 359 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling the gap in the literature, this book presents everything there is to know about this topic. By comprehensively covering the quaternary stereocenters found in a range of important and useful molecules in pharmaceutical and medicinal applications, as well as in thousands of natural products, the book provides the know-how chemists need to synthesize challenging molecules with numerous applications. A must for organic chemists in academia, the pharmaceutical industry and medicine. From the Contents: Important Natural Products Important Pharmaceuticals and Intermediates Aldol Reactions Michael Reactions and Conjugate Additions Cycloaddition Reactions Rearrangement Reactions Alkylation of Ketones and Imines Asymmetric Allylic Alkylation Asymmetric Cross Coupling and Heck Reactions Phase Transfer Catalysis Enzymatic Methods Radical Reactions