Organisk kemi

This book presents recent advances in dinuclear complexes in which the metal-metal cooperative effect operates for obtaining substrate activation and high performance catalysts. Catalysis continues to be a fast expanding area to design efficient tools in synthesis and in industrial chemistry. It allows performing syntheses with short reaction times, atom economy, reduced consumption of energy and loss of reagents, and low level of wastes. Dinuclear complexes are known to be more efficient than the mononuclear analogues for the reaction rates and the selectivities. This book analyses the latest research, focusing on the key concepts, in building and using these dinuclear complexes. The book is aimed at researchers, graduate students and chemists at all levels in academia and industry.

Antimicrobial Peptides: A Roadmap for Accelerating Discovery and Development covers the most important efforts of scientists and engineers worldwide to accelerate the process of discovery, production, and eventual market penetration of more potent antimicrobial peptides. These efforts have been fueled by emerging technologies such as artificial intelligence and data science, molecular and CFD simulations, easy-to-use process simulation packages, microfluidics, 3D-printing, among many others. Such technologies can now be implemented and scaled up quickly and at relatively low cost in low-budget production facilities, critical to moving to sustainable and marketable products worldwide. Discovering novel antimicrobial peptides rationally and cost-effectively has emerged as one of the significant challenges of modern biotechnology. Thus far, this process has been tedious and costly, resulting in molecules with activities far below those needed to address the current challenge of microbial resistance to antibiotics that takes the lives of thousands of people around the world every year. Finally, the book also highlights how multidisciplinary teams have assembled to address the challenges of manufacturing, biological testing, and clinical trials to finally reach complete translation.

Human Microbiome Drug Targets: Modern Approaches in Disease Management presents fundamental information on the human microbiome, looking into the relationship between the microbiome and how it changes with specific diseases. Delving into the multifaceted roles of the microbiome in health and disease, the book's chapters discuss the role of the human microbiome in the pathophysiologic understanding of relevant diseases or disorders and their management. As changes in the human microbiome can provide clues to the probable cause and effect of diseases or disorders, as well as the impacts of therapy or intervention, this book is a welcomed addition to the existing research. Explaining how a better understanding of the microbiome and its impact on health and disease can pave the way for future discoveries leading to better health outcomes, this book will be of interest to drug developers, medicinal chemists, microbiologists, infectious disease specialists, biochemists, and students.

Organic Radicals summarizes the applications of these materials in several fields, in addition to analyzing challenges, limitations and impacts of materials containing organic radicals on human, plants, water, soil, and animals. Sections cover uses of organic radicals as effective precursors for block molecules building and discuss their effectiveness as precursors of organic radical- containing materials synthesis and their applications in medicine, biology, electronics, environmental sciences, plastics synthesis, polymers building and the several impacts after organic radicals uses. In recent years, the rapid development of organic radical-containing materials has afforded an interesting research area in various applications.

Nanotechnology and In Silico Tools: Natural Remedies and Drug Discovery provides the latest information and updates in the area of drug discovery. The book covers aspects like nanomedicines, bioinformatics, molecular docking, molecular modeling, QSAR, virtual screening, and computational chemistry as well as metabolomics research using various tools. It combines the principles of natural medicines with refined modern technology to help chemists in the development of a more ecofriendly and effective discovery process. The drug discovery process accelerates the design of new leads for various life-threatening diseases and natural medicines. Silico tools have been an integral part of the drug discovery process, playing a major role as a template for drug discovery and offering a holistic approach to better management of various diseases.

Green Gasoline covers a range of new technologies being used to produce green gasoline products and compares them to traditional fuels in terms of sustainability.

This book provides an up-to-date overview of the biological functions of melanins, their biotechnological production, and their industrial applications. The melanins form a group of polymeric pigments found in most organisms. These natural products are generated by the oxidation of phenolic and indolic molecules yielding melanins, which include eumelanin, pheomelanin, pyomelanin, and the allomelanins. These pigments have diverse biological functions, including photoprotection, thermoregulation, antioxidation, virulence, and metal ion sequestration. Melanins have physicochemical properties that have proven useful in the optical, electronic, material, agriculture, cosmetic, pharmaceutical, and medical industries. The chapters in this book provide an in-depth analysis of the current issues and challenges in this field. Topics covered include the properties, biogenesis, and evolution of melanosomes. The book also addresses the synthesis and industrial production of melanins by microorganisms. The metabolic pathways for the synthesis of several types of polymeric pigments in microorganisms and their role in pathogenesis are reviewed. The large-scale production and purification of melanins to provide this product for industrial applications is a formidable challenge. Two chapters present and discuss the state-of-the-art used for the generation of microbial melanin-production strains and the processes for the biotechnological synthesis and purification of these pigments. Melanins are polymers that can interact with metals, a chapter reviews this capacity in the context of technological applications, including electrochemical energy storage and metal recovery. These polymers are materials having favorable characteristics for photonic applications, including UV blocking and broadband absorption. The current advances in the application of these pigments in optically active materials are presented and discussed.

The Practical book is an attempt to give to students of practical Pharmaceutical organic chemistry the benefit of some 11 years of experience in the teaching of the subject. The new procedures and many specialized techniques are incorporated into this book. Furthermore, new experiments for the elementary student have emanated; have been tried out with large classes of undergraduate students over several sessions with gratifying success and have now been included in the present text-book.

This third edition is a comprehensive and extended study about the best known approaches for preparing the main types of glycosides, covering the classic and more recent glycosylation reactions used for preparing simple and challenging glycosides currently used as potent antiviral and antineoplastic drugs, or fluorogenic substrates used for enzymatic detection in cell biology.  Besides, this new edition provides more examples of the glycosidic methodologies followed for preparing complex glycoconjugates such as glycoproteins and glycosphingolipids and gangliosides used as adjuvants or as synthetic vaccines candidates.Also, additional mechanistic evidence is presented for better understanding of the glycosylation reaction, trying to identify the variables mainly depending on protecting and leaving groups, as well as catalyst and reaction condition which altogether directs the anomeric stereo control.A chapter on the glycoside hydrolysis is included in view of the increasing interest in the use of biomass as a natural and renewable source for obtaining important intermediates or products used in food or valuable materials.The author includes information in the characterization of glycosides section with the aim of giving additional tools for the structural assignment through NMR, X-Ray and mass spectra techniques.

In recent decades, artificial porous structures have attracted increasing enthusiasm from researchers inspired by the fascinating molecular pores in nature and their unique biological functions. Although substantial achievements in porous materials have been realized, the construction of topologically designed pores is still challenging. Recently, the emergence of covalent organic frameworks (COFs), which are constructed based on organic and polymer chemistry, has made it possible to design artificial pores with controlled pore size, topology and interface properties. COFs are crystalline porous materials constructed by the precise reticulation of organic building blocks via dynamic covalent bonds. Distinct from non-covalent interactions which tend to produce isostructures, covalent bonds enable accurate pore design owing to their predetermined reaction pathways. In addition, the appropriate polycondensation of organic building units enables the formation of extended two-dimensional (2D) and three-dimensional (3D) polymer architectures with periodically ordered skeletons and well-defined pores. With their large surface area, tailorable structures, and tunable chemistry, COFs are regarded as potentially superior candidates for various applications including catalysis, energy storage and conversion, mass transport and biotechnology. This book examines the historic achievement of COFs, providing clear and comprehensive guidance for researchers on their structural design, synthetic protocols and functional exploration.

This book discusses the chemistry and applications of pyridine derivatives. The library of pyridine derivatives is growing steadily with numerous synthetic analogues already described and the identification of new, naturally occurring pyridine-based compounds. The book includes ten chapters organized into two parts. The first part focuses on the numerous types of reactions that arise from pyridine derivatives. The second part examines the pharmaceutical applications of pyridine derivatives as well as their usefulness as sensors for metal cations and extracting agents for platinum group metals.

Green Chemistry - New Perspectives is at the frontiers of this continuously evolving interdisciplinary science, and publishes research that attempts to reduce the environmental impact of the chemical enterprise by developing a technology base that is inherently non-toxic to living things and the environment. The book covers all aspects of green chemistry, including chemical synthesis, nano synthesis, eco-friendly processes, biomass, extraction techniques, environmental remediation, and energy, making it a unique reference resource. This will continue to encourage scientists around the world to develop novel synthetic methods or improve the existing ones to circumvent some of the problems and favours all aspects of green chemistry. This book is intended for academia, professionals, scientists, as well as graduate and undergraduate students without any geographical limitations.

A Schiff base (imine -N=CH-) is a part of a popular group of organic compounds prepared form primary amines and aldehyde. Many studies have been carried out on Schiff bases not only as organic compounds but also as ligands for metal complexes. In this context, this book provides a comprehensive, interdisciplinary review of Schiff base compounds, with an emphasis on the latest advances. It compiles research results, commentary, reviews, and more dealing with preparation, spectroscopy, crystallography, (asymmetric) synthetic roles, physical properties (magnets, optics, etc.), computational chemistry, and theoretical chemistry. The book focuses on Schiff base and its strong connection to organic chemistry, biochemistry, and polymer materials chemistry. It covers three topics: Schiff base of organic chemistry, Schiff base of inorganic chemistry, and Schiff base of functional or biological materials.

Carotenoids are natural and versatile secondary metabolites, most of them showing colours that vary from yellow to red. They are widespread among living beings where they are involved in many biological roles reporting beneficial actions. To date, more than 750 carotenoids have been described in nature. Humans cannot synthesize carotenoids de novo, thus they are mainly obtained through diet. In fact, carotenoids are consistently found in tissues or biological fluids where they play a beneficial decreasing the risk of developing some diseases.During the last half-century, significant advances in carotenoids research have been made. This book highlights new perspectives and applications of carotenoids including characterization and isolation of new compounds (including rare carotenoids), their production at a mid-large scale (involving new innovative approaches), and uses of carotenoids in different biotechnological fields like food science, biomedicine, and cosmetics.

Herbal formulations, Phytochemistry and Pharmacognosy combines the principles of natural medicines with refined modern technology that helps the development of more ecofriendly, better effective, easily available, and affordable drug discovery process.The drug discovery process accelerates the design of new leads for various life-threatening diseases. Natural medicines have been an integral part of drug discovery process, and these not only play a major role as a template for the drug discovery but also offer holistic approach for better management of various diseases.The main purpose of this book is to provide the classical and applied knowledge in drug discovery and broadly cover the related aspects such as herbal formulations, phytochemistry and pharmacogenetic research.

This book presents experimental work conducted on the International Space Station (ISS) in order to characterize metals and alloys in the liquid state. The internationally recognized authors present and discuss experiments performed in microgravity that enabled the study of the relevant volume and surface related properties free of the restrictions of a gravity-based environment. The collection serves also as a handbook of space experiments using electromagnetic levitation techniques. A summary of recent results provides an overview of the wealth of space experiment data, which will ignite further research activities and inspire academics and industrial research departments for their continuous development. 

Chalcone derivatives are easily development and synthesized to produce an assortment of heterocyclic compounds with diverse structures. Therefore, the purpose of this review is to describe the most recent substituted chalcones synthesis. Different functionalized heterocycles containing nitrogen, sulfur or phosphorus were prepared via the reaction of different chalcones with a variety of nucleophilic reagents or organophosphorus ylides. The most significant of chalcone compounds were the subject of certain documented biological research.

This book is part of 7 books which covers whole chemistry for the Board as well competitive exams. We have divided total chemistry syllabus in to 7 books each one will come in every phase. All of these books are designed to keep in mind the requirements of CBSE board as well IIT entrance exam syllabus. This Book consists of Nomoreclass concepts and previous IIT questions.

This book comprehensively reviews the phytochemistry, functional properties, and health-promoting effects of bioactive compounds found in oil processing by-products, and it also explores the food and non-food applications of these by-products. Several oilseeds, vegetables, and fruits are cultivated for their oils and fats, wherein the oil extraction industry generates a huge amount of waste (meal or cake). The valorisation of this waste would be very beneficial not only from the economic and environmental perspectives, but also for the potential applications in food, cosmetics and pharmaceutical industries, in which phytochemicals derived from vegetable oil and oilseed processing by-products play an important role in, for instance, extending the shelf life of several products and providing added-value properties with their antioxidant and antimicrobial properties.In this work, expert contributors discuss about the added-value of biowaste from common and non-traditional vegetable oils and oilseeds processing, as well as fruit oils processing, and offer an extensive overview of the different bioactive compounds found in extracts from oil processing by-products and their chemical composition. The book also collects several examples in which oil processing by-products are integrated into industrial activities such as food production, livestock production and in pharmaceutical and cosmetics industries. Professionals and scholars alike interested in the recycling of agro-industrial wastes derived from vegetable oil and oilseed processing by-products will find this book a handy reference tool.

Textile-based compression therapy is used in a range of applications, such as for athlete and sport recovery, enhanced proprioception, compression spacesuits, and in the management of chronic diseases. This book provides an overview of compression devices and products, testing methods to measure the properties of materials used in compression devices, and design considerations based on dynamic body measurements. It also includes a model for predicting pressure and details the challenges in applying compression for various applications.Chapters in this book:Discuss the science behind compression therapyDelve into the materials used in compression devices and products and assesses their performance based on their properties and structureCover theoretical modeling to predict the pressure exerted by compression devices on the human bodyConsider compression textile design based on dynamic body measurementsThis book is aimed at professionals and researchers in textile engineering, materials engineering, biotechnology, and the development of textile-based compression devices and products, and at such medical practitioners as phlebologists.

Compression Textiles for Medical, Sports, and Allied Applications provides an overview of compression devices and products. It includes testing methods to measure properties of materials, design considerations based on dynamic body measurements and a model for predicting pressure and challenges in application.

The aim of this book is to provide an overview of the situation regarding the biodegradable polymer along the value chain, identify and analyse existing practices for biodegradable plastics, assess the relevant legal, regulatory, economic and practical reasons for the importance of proper use and proper recycling of biodegradable plastics.

A comprehensive review of the latest molecular advances in cancer treatmentFeaturing 91 total small molecule kinase/KRAS inhibitors, 80 of which are FDA-approved, Molecules Engineered Against Oncogenic Proteins and Cancer documents the recent scientific advances that have transformed one of medicine's most challenging areas--cancer treatment. Most of these inhibitors specifically block oncogene-induced carcinogenic proteins with results that have dramatically advanced the treatment of cancer. In addition, the structural formulas of more than 100 kinase/KRAS inhibitors in clinical trials are presented.With a very well-known chemist as an author, Molecules Engineered Against Oncogenic Proteins and Cancer includes information on:* Each molecule's structure, function of the kinase target and relevance to cancer, the drug discovery process, and molecular details of drug action* Mutated protein kinases as oncoproteins and targets for inhibition, along with the details of discovery for each antitumor antikinase agent* History of oncoprotein inhibitors and their role in advancing the treatment and understanding of cancer* The discovery process as a whole, effective strategies for innovation, ongoing challenges, and a glimpse of the future of the fieldCombining the most significant recent discoveries in a unique and useful way, Molecules Engineered Against Oncogenic Proteins and Cancer is an essential resource for researchers and students in bioscience, medicine, chemistry, and oncology as well as for those at industrial companies involved in therapeutic discovery.

This textbook is written to thoroughly cover the topic of introductory chemistry in detail¿with specific references to examples of topics in common or everyday life. It provides a major overview of topics typically found in first-year chemistry courses in the USA. The textbook is written in a conversational question-based format with a well-defined problem solving strategy and presented in a way to encourage readers to ¿think like a chemist¿ and to ¿think outside of the box.¿ Numerous examples are presented in every chapter to aid students and provide helpful self-learning tools. The topics are arranged throughout the textbook in a "traditional approach" to the subject with the primary audience being undergraduate students and advanced high school students of chemistry.

This book is reflecting upon core theories in evolutionary biology ¿ in a historical as well as contemporary context. It exposes the main areas of interest for discussion, but more importantly draws together hypotheses and future research directions.The Modern Synthesis (MS), sometimes referred to as Standard Evolutionary Theory (SET), in evolutionary biology has been well documented and discussed, but was also critically scrutinized over the last decade. Researchers from diverse disciplinary backgrounds have claimed that there is a need for an extension to that theory, and have called for an Extended Evolutionary Synthesis (EES).The book starts with an introductory chapter that summarizes the main points of the EES claim and indicates where those points receive treatment later in the book. This introduction to the subjects can either serve as an initiation for readers new to the debate, or as a guide for those looking to pursue particular lines of enquiry. The following chapters are organized around historical perspectives, theoretical and philosophical approaches and the use of specific biological models to inspect core ideas. Both empirical and theoretical contributions have been included. The majority of chapters are addressing various aspects of the EES position, and reflecting upon the MS. Some of the chapters take historical perspectives, analyzing various details of the MS and EES claims. Others offer theoretical and philosophical analyses of the debate, or take contemporary findings in biology and discuss those findings and their possible theoretical interpretations. All of the chapters draw upon actual biology to make their points. This book is written by practicing biologists and behavioral biologists, historians and philosophers - many of them working in interdisciplinary fields. It is a valuable resource for historians and philosophers of biology as well as for biologists. Chapters 8, 20, 22 and 33 are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

Readers will take a journey on how covalently bonded materials and their hybrids can change the material world through applications relevant to energy, water and the environment.