Download or read book Heterocycles from Carbohydrate Precursors written by El Sayed H. El Ashry and published by Springer Science & Business Media. This book was released on 2007-06-27 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a volume in the series Topics in Heterocyclic Chemistry.Itc- ers the key methods used for designing synthetic approaches to heterocycles from carbohydrates and the value and scope of these methods. Carbohydrates are widely distributed in nature and constitute the largest part of renewable biomasses. Moreover, many carbohydrates and their derivatives are comm- cially available at relatively cheap prices. Consequently their utilization is highly encouraged and economically they are of great signi?cance. Moreover, carbohydrates are highly functionalized compounds that can be readily deri- tized and/or cyclized to provide heterocyclic compounds. This book provides a modern account and an up-to-date description of the advancement in the synthesis of diverse heterocycles from carbohydrates. Carbohydrates can be considered as a source of chiral centers in addition to the variable modi?cation thereof. Herein the elaboration of the carbohydrate molecules for providing different heterocycles is the main objective and team efforts from leaders of the topics has been gathered in this volume. This book is designed to be suitable for students and researchers. It is highly recommended as a reference book and for teaching the fascinating topics related to carbohydrates, heterocycles and organic synthesis. In addition to its importance in academia, it is also an excellent source for information about the variety of methods used in the synthesis of heterocycles important to industry.
Download or read book Carbohydrates in Chemistry and Biology written by Vinod Kumar Tiwari and published by . This book was released on 2025-06-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbohydrates in Chemistry and Biology provides detailed information about the green synthesis, biological importance and catalytic applications of carbohydrate derivatives. It includes topics including carbohydrate decorated compounds, bioconjugation, carbohydrate functionalized heterocycles, carbohydrate-spiro-heterocycles, heterocycles from carbohydrate precursors and natural sources of bioactive carbohydrates.
Download or read book Carbohydrate spiro heterocycles written by László Somsák and published by Springer Nature. This book was released on 2019-10-26 with total page 295 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is devoted to compounds in which the spiro centre is part of a pyranoid or furanoid or an iminosugar ring. The chapters contributed deal with methodological peculiarities of syntheses of natural and artificial sugar derived spirocycles as well as their biological applications and other utilities including marketed drugs. Carbohydrates are ubiquitous molecules in nature and participate in a vast number of biological interactions. Especially their conjugates with practically all kinds of primary and secondary metabolic small molecules (and also biomacromolecules) representing valuable tools for glycobiology research and also lead compounds for drug discovery. While monosaccharides per se appear as heterocycles, their natural conjugates frequently exhibit spiro(hetero)cyclic derivatives, in many cases of high therapeutical relevance. As a consequence, the field of carbohydrate-spiro-heterocycles attracts intense interest from both chemical and biomedical aspects therefore this volume will be of interest for synthetic and medicinal chemists and (glyco)biologists, as well as researchers involved in various biomedical fields.
Download or read book Synthesis of Naturally Occurring Nitrogen Heterocycles from Carbohydrates written by El Sayed H. El Ashry and published by John Wiley & Sons. This book was released on 2008-04-15 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbohydrates are widely distributed in nature and widely available, and so are considered as a promising feedstock for the preparation of many organic chemical compounds. They are particularly useful in the preparation of nitrogen heterocycles because of their related structural characteristics and easy availability. Synthesis of Naturally Occurring Nitrogen Heterocycles from Carbohydrates will review the recent literature dealing with use of carbohydrates as raw materials in the synthesis of these materials. The text contains six chapters arranged according to the complexity of the heterocyclic compounds discussed, ranging from five to seven membered rings and from single to multiple fused rings. The book provides a detailed discussion of the various synthetic approaches to these compounds, using carbohydrate starting materials, and does not merely reference synthetic methodology but attempts to give as much detail as possible on the actual experimental conditions used, in such a way that the chemist can use the information directly to design a multi-step synthesis. It discusses the different approaches to the synthesis of a wide range of naturally occurring nitrogen heterocycles in a format that enables the reader to make comparisons and decisions on whether to use a certain procedure, to modify it, or to devise a new synthetic methodology.
Download or read book Domino and Intramolecular Rearrangement Reactions as Advanced Synthetic Methods in Glycoscience written by Zbigniew J. Witczak and published by John Wiley & Sons. This book was released on 2016-02-23 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book consists of a brief introduction, a foreward provided by professor Danishefsky of Columbia University, and about 14 - 16 chapters, each written by one or two eminent scholars/authors describing their recent research in the area of either domino reactions or intramolecular rearrangements in carbohydrate chemistry. Three or four chapters will be reviews. The domino (cascade, tandem) reactions are always intramolecular. They are usually very fast, clean and offer highly complex structures in a one pot process. Intramolecular rearrangements offer very similar advantages and often lead to highly complex products as well. Although many recently isolated carbohydrates fulfill various sophisticated functions, their structures are often very complex. The editors cover the broadest scope of novel methodologies possible. All the synthetic and application aspects of domino/cascade reactions are explored in this book. A second theme that will be covered is intramolecular rearrangement, which is also fast, stereoselective, and often constitutes one or more steps of domino / cascade process. Selected examples of intramolecular rearrangements are presented. Together, both processes offer an elegant and convenient approach to the synthesis of many complex molecules, which are normally difficult to synthesize via alternative routes. It appears that domino and intramolecular rearrangements are ideally suited to synthesize certain specific modified monosaccharides. What is particularly important is that both processes are intermolecular and almost always yield products with very well-defined stereochemistry. This high definition is absolutely crucial when synthesizing advanced, modified mono and oligosaccharides. The choice of contributors reflects an emphasis on both therapeutic and pharmacological aspects of carbohydrate chemistry.
Download or read book Halogenated Heterocycles written by Jernej Iskra and published by Springer Science & Business Media. This book was released on 2012-02-09 with total page 326 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book explores topics in Heterocyclic chemistry, including Perfluoroheteroaromatic Chemistry; Monofluorinated Heterocycles; Synthesis of beta-Halofurans; Halogenated Heterocycles as Pharmaceuticals; Green Methods in Halogenation of Heterocycles and more.
Download or read book Bioactive Heterocycles VII written by Noboru Motohashi and published by Springer. This book was released on 2009-04-03 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: See Table of Contents (PMP)
Download or read book Carbohydrate Chemistry written by Amelia Pilar Rauter and published by Royal Society of Chemistry. This book was released on 2009-07 with total page 370 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbohydrate Chemistry provides review coverage of all publications relevant to the chemistry of monosaccharides and oligosaccharides in a given year. The amount of research in this field appearing in the organic chemical literature is increasing because of the enhanced importance of the subject, especially in areas of medicinal chemistry and biology. In no part of the field is this more apparent than in the synthesis of oligosaccharides required by scientists working in glycobiology. Clycomedicinal chemistry and its reliance on carbohydrate synthesis is now very well established, for example, by the preparation of specific carbohydrate- based antigens, especially cancer-specific oligosaccharides and glycoconjugates. Coverage of topics such as nucleosides, amino-sugars, alditols and cyclitols also covers much research of relevance to biological and medicinal chemistry. Each volume of the series brings together references to all published work in given areas of the subject and serves as a comprehensive database for the active research chemist Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis.
Download or read book Phosphorus Heterocycles II written by Raj K. Bansal and published by Springer. This book was released on 2010-04-21 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: S. Sasaki: Heterophenes Carrying Phosphorus Functional Groups as Key Structures.- D.D. Enchev: Synthesis and Biological Activity of 2,5-Dihydro-1,2-Oxaphosphole-2-Oxide Derivatives.- D. Gudat: Recent Developments in the Chemistry of N -Heterocyclic Phosphines.- J. Drabowicz ∙ D. Krasowska ∙ A. Łopusiński ∙T.S.A. Heugebaert ∙ C.V. Stevens: Selected Five-Membered Phosphorus Heterocycles Containing a Stereogenic Phosphorus.- G. Keglevich: 1-(2,4,6-Trialkylphenyl)-1 H -Phospholes with a Flattened P-Pyramid: Synthesis and Reactivity.- N. Gupta: Recent Advances in the Chemistry of Diazaphospholes
Download or read book Synthesis of Heterocycles Via Multicomponent Reactions II written by Romano V. A. Orru and published by Springer Science & Business Media. This book was released on 2010-09-05 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: Géraldine Masson, Luc Neuville ∙ Carine Bughin ∙ Aude Fayol ∙ Jieping Zhu Multicomponent Syntheses of Macrocycles Thomas J.J. Müller Palladium-Copper Catalyzed Alkyne Activation as an Entry to Multicomponent Syntheses of Heterocycles Rachel Scheffelaar ∙ Eelco Ruijter ∙ Romano V.A. Orru Multicomponent Reaction Design Strategies: Towards Scaffold and Stereochemical Diversity Nicola Kielland ∙ Rodolfo Lavilla Recent Developments in Reissert-Type Multicomponent Reactions Jitender B. Bariwal ∙ Jalpa C. Trivedi ∙ Erik V. Van der Eycken Microwave Irradiation and Multicomponent Reactions Irini Akritopoulou-Zanze ∙ Stevan W. Djuric Applications of MCR-Derived Heterocycles in Drug Discovery
Download or read book Phosphorous Heterocycles I written by Raj K. Bansal and published by Springer Science & Business Media. This book was released on 2009-06-15 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: See Table of Contents (PMP)
Download or read book Metalation of Azoles and Related Five Membered Ring Heterocycles written by Gordon W. Gribble and published by Springer. This book was released on 2012-07-09 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: T. L.S. Kishbaugh: Metalation of Pyrrole.- K.-S. Yeung: Furans and Benzofurans.- P. E. Alford: Lithiation-Based and Magnesation-Based Strategies for the Functionalization of Imidazole: 2001–2010.- L. Fu: Metalation of Oxazoles and Benzoxazoles.- S. Roy • S. Roy • G. W. Gribble: Metalation of Pyrazoles and Indazoles.- J. C. Badenock: Metalation Reactions of Isoxazoles and Benzisoxazoles.- Y.-J. Wu: Thiazoles and Benzothiazoles.- C. F. Nutaitis: Isothiazoles and Benzisothiazoles.- E. R. Biehl: Recent Advances in the Synthesis of Thiophenes and Benzothiophenes.- J. M. Lopchuk: Mesoionics.- J. M. Lopchuk: Azoles with 3-4 Heteroatoms.
Download or read book Synthesis of Heterocycles via Multicomponent Reactions I written by Romano V. A. Orru and published by Springer. This book was released on 2010-07-20 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: L. Banfi ∙ A. Basso ∙ R. Riva: Synthesis of Heterocycles Through Classical Ugi and Passerini Reactions Followed by Secondary Transformations Involving One or Two Additional Functional Groups.- V.A. Chebanov ∙ K. A. Gura ∙ S.M. Desenko: Aminoazoles as Key Reagents in Multicomponent Heterocyclizations.- Y. Huang ∙ K. Khoury ∙ A. Dömling: Piperazine Scaffolds by Multicomponent 3 Reactions: The Piperazine Space 4 in MCR Chemistry 5 Deep MCR Piperazine Space.- N. Elders ∙ E. Ruijter ∙ V.G. Nenajdenko ∙ R.V.A. Orru: α-Acidic Isocyanides in Multicomponent Chemistry.- A. Cukalovic ∙ J.-C.M.R. Monbaliu ∙ C.V. Stevens: Microreactor Technology as an Efficient Tool for Multicomponent Reactions.- L.A. Wessjohann ∙ C.R.B. Rhoden ∙ D.G. Rivera ∙ O. Eichler Vercillo: Cyclic Peptidomimetics and Pseudopeptides from Multicomponent Reactions.- M. del Mar Sanchez Duque ∙ C. Allais ∙ N. Isambert ∙ T. Constantieux ∙ J. Rodriguez: ß-Diketo Building Blocks for MCRs-Based Syntheses of Heterocycles
Download or read book Heterocyclic Scaffolds II written by Gordon W. Gribble and published by Springer. This book was released on 2010-10-08 with total page 498 pages. Available in PDF, EPUB and Kindle. Book excerpt: Richard J. Sundberg Electrophilic Substitution Reactions of Indoles Tara L.S. Kishbaugh Reactions of Indole with Nucleophiles Erin Pelkey Metalation of Indole Jie Jack Li ∙ Gordon W. Gribble Metal-Catalyzed Cross-Coupling Reactions for Indoles Jeanese C. Badenock Radical Reactions of Indole Fariborz Firooznia ∙ Robert F. Kester ∙ Steven J. Berthel [2+2], [3+2] and [2+2+2] Cycloaddition Reactions of Indole Derivatives Robert F. Kester ∙ Steven J. Berthel ∙ Fariborz Firooznia [4+2] Cycloaddition Reactions of Indole Derivatives Jonathon S. Russel Oxindoles and Spirocyclic Variations: Strategies for C3 Functionalization Liangfeng Fu Advances in the Total Syntheses of Complex Indole Natural Products
Download or read book Amino Acids Insights and Roles in Heterocyclic Chemistry written by Zerong Wang and published by CRC Press. This book was released on 2023-05-26 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is the second volume of a first-of-its-kind four-volume book set that provides readers with up-to-date information on α-amino acids, the potential challenges in working with α-amino acids, the protecting groups for the carboxyl, amino and side chain groups of the amino acids, and the most popular heterocyclic compounds that are originating from alpha-amino acids. These heterocyclic compounds include hydantoins, thiohydantoins (including 2-thiohydantoins, 4-thiohydantoins, 2,4-dithiohydantoins), 2,5-diketopiperazines, N-carboxyanhydrides, N-thiocarboxyanhydrides, sydnones, sydnonimines, azlactones, pseudoazlactones, and oxazolidin-5-ones. This is the first resource to comprehensively collect all the heterocycles that can be directly prepared from α-amino acids. In addition, almost all kinds of synthetic methods for a particular type of heterocycles from alpha-amino acids are included, along with the detailed mechanistic discussions and experimental procedures. In Volume 2: Hydantoins, Thiohydantoins, and 2,5-Diketopiperazines compiles the three IUPAC accepted nomenclature systems for heterocyclic compounds, which will be very useful for readers working in the heterocyclic chemistry field for giving synthesized molecules their correct names. In addition, three groups of heterocyclic compounds, i.e., hydantoins, thiohydantoins (including 2-thiohydantoin, 4-thiohydantoin and 2,4-dithiohydantoin), and 2,5-diketopiperazines, have been organized with updated literature information. Particularly, all three groups of heterocyclic compounds have demonstrated many important biological activities, particularly anticancer and antibacterial activities. On the other hand, these three groups of heterocycles can be applied as substrates to make other chemical derivatives, particularly novel unnatural amino acids. All their reactivities have been compiled and updated. The other volumes include: Volume 1: Protecting Groups Volume 3: N-Carboxyanhydrides, N-Thiocarboxyanhydrides, and Sydnones Volume 4: Azlactones and Oxazolidin-5-ones All together, this unique 4-volume set thoroughly covers the two types of heterocyclic compounds that are originated from alpha-amino acids, providing carefully compiled updated information with detailed examples. The author has shared many thoughtful insights based on his strong background in physical organic chemistry. The volumes will be highly valuable for graduate students and senior students, as well as for professors and researchers working in the field of medicinal and pharmaceutical chemistry, organic chemistry, organic synthesis, heterocycles, and proteins and peptides.
Download or read book Heterocyclic Supramolecules II written by Kiyoshi Matsumoto and published by Springer Science & Business Media. This book was released on 2009-12-07 with total page 167 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explanation of the structure-property relationship of a given molecule is generally simple because the characteristics of the atomic groups and chemical bonds and the effects emerging from their interaction have long been known, both from theore- cal studies and numerous experimental results. In contrast, it is often difficult to analyze, estimate, and account for the structure-properties relationship in sup- molecules. The characteristics of supramolecules are governed both by the nature of the constituent molecules and by their configuration while the characteristics of the constituent molecules are usually evident as mentioned above; their configu- tions are difficult to control, predict, and accurately estimate because of insufficient knowledge regarding the intermolecular forces. Moreover, since most of the int- molecular forces constructing supramolecules are weak, the supramolecular str- ture may vary depending on various factors, such as modification of the molecular structure, auxiliaries, and experimental conditions. Thus, in order to obtain supramolecules with the desired structures and properties, theoretical investigations on the intermolecular forces and accumulation of experimental studies on the re- tionship between the supramolecular structure and properties are both important.
Download or read book Heterocyclic Scaffolds I written by Bimal K. Banik and published by Springer. This book was released on 2010-06-01 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents: B. Alcaide ∙ P. Almendros: Novel Aspects on the Preparation of Spirocyclic and Fused Unsual β-Lactams.- S.S. Bari ∙ A. Bhalla: Spirocyclic β-Lactams: Synthesis and Biological Evaluation of Novel Heterocycles.- L. Troisi ∙ C. Granito ∙ E. Pindinelli: Novel and Recent Synthesis and Applications of β-Lactams.- C. Palomo ∙ M. Oiarbide: β-Lactams Ring Opening: A Useful Entry to Amino Acids and Relevant Nitrogen-Containing Compounds.- B. Mandal ∙ P. Ghosh ∙ B. Basu: Recent Approaches Towards Solid Phase Synthesis of β-Lactams.- A.Arrieta ∙ B. Lecea ∙ F.P. Cossio: Computational Studies on the Synthesis of β-Lactams Via [ 2+2] Thermal Cycloadditions.- B. K. Banik ∙ I. Banik ∙ F. F. Becker: Novel Anticancer β-Lactams
