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Author: Xiang Ma
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Xiang Ma
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Author: Sasadhar Majhi
Publisher: World Scientific
ISBN: 9811268703
Category : Science
Languages : en
Pages : 469
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Book Description
Modern Sustainable Techniques in Total Synthesis of Bioactive Natural Products comprises five parts for green tools, such as ultrasonic waves, microwave heating, visible-light photochemistry, organic electrochemistry, and flow chemistry, along with 72 chapters for each bioactive molecule of natural origin. Each chapter explores the natural source, structure, systematic name, structural features, compound class, biological activity, conventional approaches for their chemical synthesis, and demerit(s) of conventional approaches (where applicable). Finally, critical features of total synthesis using modern sustainable techniques, including reaction types, synthetic strategy, and synthetic route utilizing modern sustainable tools for each bioactive natural product and secondary metabolites, are discussed brilliantly. The spectrum of application of total synthesis of bioactive natural products using modern sustainable techniques may promote the development of more eco-friendly synthetic processes so that the next generations can live on this planet with a minimum energy requirement for chemical reactions with the least pollution.
Author: Rosemary Welch
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Author: National Research Council
Publisher: National Academies Press
ISBN: 0309168392
Category : Science
Languages : en
Pages : 238
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Book Description
Chemistry and chemical engineering have changed significantly in the last decade. They have broadened their scopeâ€"into biology, nanotechnology, materials science, computation, and advanced methods of process systems engineering and controlâ€"so much that the programs in most chemistry and chemical engineering departments now barely resemble the classical notion of chemistry. Beyond the Molecular Frontier brings together research, discovery, and invention across the entire spectrum of the chemical sciencesâ€"from fundamental, molecular-level chemistry to large-scale chemical processing technology. This reflects the way the field has evolved, the synergy at universities between research and education in chemistry and chemical engineering, and the way chemists and chemical engineers work together in industry. The astonishing developments in science and engineering during the 20th century have made it possible to dream of new goals that might previously have been considered unthinkable. This book identifies the key opportunities and challenges for the chemical sciences, from basic research to societal needs and from terrorism defense to environmental protection, and it looks at the ways in which chemists and chemical engineers can work together to contribute to an improved future.
Author: Jeremy Nugent
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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This thesis consists of seven scientific articles and is preceded by an overview that contextualises all of this submitted/published work. Publication 1 is a literature review on the chemistry of the palladium-catalysed intramolecular Alder-ene (IMAE) reaction, a powerful method for the construction of carbon-carbon bonds. It focusses only on the cyclisation reactions of hetero-atom linked 1,6-enynes to form cis-fused hexahydro-indoles and -benzofurans. It serves to contextualise some of the author's other published research in the area. Publication 2 consists of an invited book chapter that reviews the Banwell Group's efforts to synthesis the Amaryllidaceae alkaloid galanthamine, as well as analogues thereof, in order to further investigate the biological properties of such compounds. Similarly, Publication 3 reports a seventeen-step reaction sequence that was used to synthesise rac-galanthamine. This route featured an intramolecular Alder-ene cyclisation and a Diels-Alder/aromatisation reaction sequence to install the tricyclic framework of the natural product. Publication 4 describes the first total synthesis of the Illicium-derived sesquineolignan simonsol C, a natural product that is structurally similar to galanthamine. This twelve-step synthesis of simonsol C featured a Mitsunobu reaction and an intramolecular Heck reaction to establish the tetracyclic framework of simonsol C. A second-generation synthesis of rac-galanthamine is reported in Publication 5. This investigation, which used methodology developed in the aforementioned synthesis of simonsol C, involved, as a key step, an intramolecular Heck reaction to install the tricyclic framework of rac-galanthamine. Publication 6 describes investigations concerned with establishing the reactivity profile of N-methoxy-N-methylcyanoformamide and its capacity to introduce the Weinreb amide functionality into organic frameworks. Specifically, it describes the reaction of this cyanoformamide with various enolates and organometallic species. Publication 7 details the synthesis of N-methoxy-N-methylcyanoformamide (a previously unreported compound) via a two-step procedure. The Appendix to the thesis is comprised of a report arising from single-crystal X-ray analysis of a key compound synthesized by the author. This analysis and the derived reports are the result of studies carried out by Dr Brett Schwartz.
Author: Shinsuke Inuki
Publisher: Springer Science & Business Media
ISBN: 4431540431
Category : Science
Languages : en
Pages : 115
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Book Description
The author has developed novel methodologies for highly efficient construction of functionalized heterocycles by palladium-catalyzed domino/cascade cyclization of allenes and related compounds containing appropriate nucleophilic group(s). Based on these methodologies, enantioselective total syntheses of bioactive natural products, pachastrissamine (26% overall yield in seven steps), lysergic acid (4.0% overall yield in fifteen steps), lysergol (3.6% overall yield in fifteen steps) and isolysergol (8.2% overall yield in eleven steps) have been achieved. These are more facile synthetic route than those previously reported. These findings would contribute to the development of efficient synthetic methods for biologically active compounds containing a complex structure.
Author: Rajeshwar P. Sinha
Publisher: Academic Press
ISBN: 0128206594
Category : Science
Languages : en
Pages : 504
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Book Description
Natural Bioactive Compounds: Technological Advancements deals with the latest breakthroughs in the field of screening, characterization and novel applications of natural bioactive compounds from diverse group of organisms ranging from bacteria, viruses, cyanobacteria, algae, fungi, bryophytes, higher plants, sponges, corals and fishes. Written by some of the most reputed scientists in the field, this book introduces the reader to strategies and methods in the search for bioactive natural products. It is an essential read for researchers and students interested in bioactive natural products, their biological and pharmacological properties, their possible use as chemopreventive or chemotherapeutic agents, and other future potential applications. - Explores natural sources of bioactive compounds, including cyanobacteria, bacteria, viruses, fungi and higher plants - Discusses the potential applications of biological products, such as their use in medicine (antibiotics, cancer research, immunology), as food additives, supplements and technological substances - Analyzes the contributions of emerging or developing technologies for the study of bioactive natural compounds (characterization and purification)
Author: Yuichi Kobayashi
Publisher: Springer
ISBN: 9811362440
Category : Science
Languages : en
Pages : 371
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Book Description
This book describes cutting-edge organic syntheses of biologically active compounds, isolation of pharmaceutically promising compounds from microorganisms, drug design, and progress on chemical biology. Synthetic strategy and tactics are summarized for super-carbon chain compounds, antitumor polycycles, aryl C-glycoside, antimycins, duocarmycins, cannabinoids, and other compounds. Special chapters are devoted to synthesis and biochemistry of fatty acid metabolites, which play a central role in the initiation and resolution of inflammation. The book provides a quick survey of trending topics in organic synthesis and chemical tools for biological investigation, and furnishes ideas for future research in organic synthesis. In addition, the contents can easily be understood by young chemists, graduate students, and those who are looking for new research based on organic chemistry.
Author: Goutam Brahmachari
Publisher: Elsevier
ISBN: 0081028237
Category : Science
Languages : en
Pages : 352
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Book Description
Total Synthesis of Bioactive Natural Products provides step-by-step guidelines for effectively synthesizing the most promising bioactive agents from a broad range of natural products. Beginning with a concise background that outlines the benefits and challenges faced in effective synthesis, the book goes on to provide individual outlines for approximately 100 of the most promising bioactive agents. Taking a logical, user-friendly approach, the systematic name, compound class, structure, natural source, pharmaceutical potential and synthetic routes for each structure are detailed, with clear illustrations throughout, making this book an essential and practical guide for anyone working with both synthesis and natural products. - Provides individual outlines for the total synthesis of approximately 100 bioactive natural molecules - Outlines each step of the process in detail, with full experimental information supported by extensive schemes - Includes retrosynthetic analyses, reaction sequences and stereochemically crucial steps for each molecule
Author: Stephen J. Cutler
Publisher: CRC Press
ISBN: 1420048651
Category : Medical
Languages : en
Pages : 296
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Book Description
Biologically Active Natural Products: Pharmaceuticals demonstrates the connections between agrochemicals and pharmaceuticals and explores the use of plants and plant products in the formulation and development of pharmaceuticals. Experts from around the world examine a multitude of topics, including evaluation of extracts from tropical plants for p
