Compounds labeled with carbon-14 and tritium are indispensable tools for research in biomedical sciences, discovery and development of pharmaceuticals and agrochemicals.

"Preparation of Compounds Labeled with Tritium and Carbon-14" is a comprehensive, authoritative and up-to-date discussion of the strategies, synthetic approaches, reactions techniques, and resources for the preparation of compounds labeled with either of these isotopes. A large number of examples are presented for the use of isotopic sources and building blocks in the preparation of labeled target compounds, illustrating the range of possibilities for embedding isotopic labels in selected moieties of complex structures. Topics include: Formulation of synthetic strategies for preparing labeled compoundsIsotope exchange methods and synthetic alternatives for preparing tritiated compoundsIn-depth discussion of carbon-14 building blocks and their utility in synthesisPreparation of enantiomerically pure isotopically labeled compoundsApplications of biotransformations

"Preparation of Compounds Labeled with Tritium and Carbon-14" is an essential guide to the specialist strategies and tactics used by chemists to prepare compounds tagged with theradioactive atoms carbon-14 and tritium.

This book covers a wide range of topics related to functional dyes, from synthesis and functionality to application. Making a survey of recent progress in functional dye chemistry, it provides an opportunity not only to understand the structure-property relationships of a variety of functional dyes but also to know how they are applied in practical use, from electronic devices to biochemical analyses. From classic dyes such as cyanines, squaraines, porphyrins, phthalocyanines, and others to the newest functional -conjugation systems, various types of functional dyes are dealt with extensively in the book, focusing especially on the state of the art and the future. Readers will benefit greatly from the scientific context in which organic dyes and pigments are comprehensively explained on the basis of chemistry.

Medicinal chemistry is both science and art. The science of medicinal chemistry offers mankind one of its best hopes for improving the quality of life. The art of medicinal chemistry continues to challenge its practitioners with the need for both intuition and experience to discover new drugs. Hence sharing the experience of drug research is uniquely beneficial to the field of medicinal chemistry. Drug research requires interdisciplinary team-work at the interface between chemistry, biology and medicine. Therefore, the topic-related series Topics in Medicinal Chemistry covers all relevant aspects of drug research, e.g. pathobiochemistry of diseases, identification and validation of (emerging) drug targets, structural biology, drugability of targets, drug design approaches, chemogenomics, synthetic chemistry including combinatorial methods, bioorganic chemistry, natural compounds, high-throughput screening, pharmacological in vitro and in vivo investigations, drug-receptor interactions on the molecular level, structure-activity relationships, drug absorption, distribution, metabolism, elimination, toxicology and pharmacogenomics. In general, special volumes are edited by well known guest editors.

A reference text focusing on basic organic chemistry and reactions of naturally occurring organic substances in soils. Covers pools of organic matter in soils, transformations, methods of extraction and fractionation. Section two deals primarily with the chemistry of known classes of organic compounds in soils including saccharides, lipids and constituents containing nitrogen, phosphorus and sulfur. Section three is concerned with basic organic chemistry of humic substances, followed by the importance of organic matter associations and interactions. Contains new chapters on NMR spectroscopy, analytical pyrolysis and on chemical structures.

This book presents recent advances in and perspectives on the use of organoselenium compounds, primarily highlighting the new frontiers in the field of Green Chemistry, their therapeutic and biological relevance and new materials. Throughout its 200 pages, readers will find an updated and comprehensive review of new aspects of organoselenium chemistry and biochemistry. Fully referenced and written in an easy to read style, it offers readers a primary resource for including organoselenium derivatives in their projects. This book will be of interest to specialists, students and researchers involved in a broad range of fields, from synthetic green chemistry to medicinal chemistry and the chemistry of natural products. The connection between organoselenium compounds and green chemistry, despite having only recently emerged, is one of the subjects of this book. The first chapter highlights the use of Se-containing molecules as reagents and catalysts in new green protocols to access important organic transformations. The book provides a wealth of examples of bioactive Se-containing molecules, especially focusing on those with potential therapeutic uses. The second chapter focuses on the state of the art concerning the role of organoselenium compounds as antioxidants, GPx mimics, and derivatives endowed with different bioactive properties. "Organoselenium in nature" is the title of the third chapter, which equips readers with essential information on the main natural organoselenium compounds and where they are found. Selected aspects of the metabolism of selenium in plants and microorganisms are also discussed. In closing, the book includes a chapter dedicated to recent advances concerning the nonbonding interactions between organochalcogen compounds. This is currently a hot topic in selenium chemistry and biochemistry, and here readers will find key insights into the chalcogen bond and its role in the biological activity of organoselenium compounds.

This thesis describes lyotropic chromonic liquid crystals (LCLCs) with exotic elastic and viscous properties. The first part of the thesis presents a thorough analysis of the elastic and viscous properties of LCLCs as functions of concentration, temperature and ionic contents, while the second part explores an active nematic system: living liquid crystals, which represent a combination of LCLC and living bacteria. LCLCs are an emerging class of liquid crystals that have shown profound connections to biological systems in two aspects. First, the assembly process of the chromonic aggregates is essentially the same as DNA oligomers and other super-molecular assemblies of biological origin. LCLCs thus provide an excellent model system for studying physical properties such as the elasticity and viscosity of these supramolecular assemblies. Second, LCLCs are biocompatible, thus serving as a unique anisotropic matrix to interface with living systems such as bacteria. This thesis deepens our understanding of both aspects. The noncovalent nature of chromonic aggregation produces the unique viscoelasticity to be found in LCLCs, which differs dramatically from that of traditional LCs. Anisotropic interactions between LCLCs and bacteria lead to fascinating phenomena such as the deformation of LCLCs with a characteristic wavelength determined by the elasticity of the LCLCs and the activity of the bacteria, orientationally controlled trajectories of bacteria and visualization of 24 nm flagella motion.

This volume begins with a short history of malaria and follows with a summary of its biology. It then traces the fascinating history of the discovery of quinine for malaria treatment, and then describes quinine's biosynthesis, its mechanism of action, and its clinical use, concluding with a discussion of synthetic antimalarial agents based on quinine's structure. It also covers the discovery of artemisinin and its development as the source of the most effective current antimalarial drug, including summaries of its synthesis and biosynthesis, its mechanism of action, and its clinical use and resistance. A short discussion of other clinically used antimalarial natural products leads to a detailed treatment of additional natural products with significant antiplasmodial activity, classified by compound type. Although the search for new antimalarial natural products from Nature's combinatorial library is challenging, it is very likely to yield new antimalarial drugs. This book thus ends by identifying ten natural products with development potential as clinical antimalarial agents.

TEAN-LOUIS LUCHE A French poet of this eentury, Pierre Mae Orlan, wrote "Adventure does not exist, it is only in the mind of he who is pursuing it, and, as soon as it is at one's finger tips, it vanishes to come back to life, far away, in a different shape, at the frontiers of imagination." This sentence could be used to define the adventure that many sonochemists experienced. Most of them did not even suspect that the "laboratory trick" they were using was the first contact with a considerable amount of science. If a personal note is allowed here, it ean be interesting to mention the part played by chance in my involvement in sonochemistry. Almost 20 years ago, we had to perform an apparently simple Grignard reaetion with n-butylmagnesium bromide and geranial, but the results were repeatedly unsatisfactory. The one-pot Barbier technique was attempted, also without success. From my studies at the University, I imagined that the failure of the latter reaction could be caused by a common phenomenon known by solid state chemists as passivation, which in some cases can be overcome by ultrasonication. By chance, an ultrasonie bath was sitting on the next beneh, borrowed to clean some equipment. We clamped our reluctant reaction mixture into the bath, the reaction proceeded vigorously, and ... the adventure started. Without knowing anything about cavitation, high energies, ete., we had an illustration of Goethe's word "Am Anfang war die Tat" (at the Beginning was the Act).

New Strategies Targeting Cancer Metabolism: Anticancer Drugs, Synthetic Analogues and Antitumor Agents presents up-to-date synthetic strategies for three categories of antimetabolites: antifolates, purines and pyrimidines, the main classes of antimetabolites which are integrated into various pharmaceutical agents. Many of these antimetabolites are considered potent chemotherapeutic agents which have great potential impact on medical research. These main classes of antimetabolites are used in the treatment of critical diseases including cancer, malignancies, autoimmune diseases, and many other non-malignant diseases. Antineoplastic drugs such as alkylating agents which have significant effects are described. Novel synthetic strategies for many anticancer alkylating agents including nitrogen mustards, chlorambucil, melphalan, ifosamide, oxaliplatin and temozolomide are explored. Natural products have offered some of the most significant drugs for treating cancer, as many drugs currently in clinical use are derived from natural products as camptothecins, vinca alkaloids, and derivatives of podophyllotoxin. They provide a contribution that is essential for modern drug discovery and development. In this book, insights into a broad array of novel compounds are reviewed, well-recognized synthetic approaches are emphasized for further anticancer drug development and discovery, and the biological evaluation of novel synthesized compounds are included. This comprehensive reference is a valuable resource for medical chemists working in drug discovery and development, as well as pharmacologists and biochemists working in related fields.

The new time-saving revolution in drug discovery.

Combinatorial chemistry, a method for synthesizing millions of chemical compounds much faster than usual, is becoming one of the most useful technical tools available to chemists and researchers working today. Using current advances in computer and laboratory techniques, combinatorial chemistry has freed professionals from the drudgery of piecemeal experimental work and opened new creative possibilities for experimentation.

Combinatorial Chemistry: Synthesis and Application details critical aspects of the technique, featuring the work of some of the world's leading chemists, many of whom played a key role in its development. Including examples of both solution-phase and solid-phase approaches as well as the full complement of organic chemistry technologies currently available, the book describes:

• Concepts and terms of combinatorial chemistry
• Polymer-supported synthesis of organic compounds
• Macro beads as microreactors
• Solid-phase methods in combinatorial chemistry
• Encoded combinatorial libraries, including Rf-encoding of synthesis beads
• Strategies for combinatorial libraries of oligosaccharides
• Combinatorial libraries of peptides, proteins, and antibodies using biological systems.

While combinatorial chemistry originated in peptide chemistry, this volume has deliberately focused on nonpeptide organic applications, illustrating the technique's wide uses. Combinatorial Chemistry introduces organic, medicinal, and pharmaceutical chemists as well as biochemists to this exciting, cost-effective, and practical technique, which has unlocked creative potential for the next millennium.

A new rapidly progressing field on the crossroads among chemistry, biochemistry, physics and technology - supramolecular chemistry - has just emerged. You have to be involved, to know what's going on in this domain and to take part in the development. This book will show you in a condensed form exciting phenomena unthinkable within the realm of classical organic chemistry (for example, alkali metal anions or cyclobutadiene stable for month at room temperature) that not only provide the basis for revolutionizing numerous branches of industry but also improve our understanding of the functioning of living organisms and of the origin of life. Designing supramolecular systems with desired properties will among others make chemical industry cleaner and more safe, electronics smaller by developing devices composed of single molecule or molecular aggregate. It will also entirely change the way we use energy resources. In addition, it will also transform the pharmaceutical industry and medicine by developing new ways of drugs administration and new composite biocompatible materials which will serve as implants of new generation changing dentistry, surgery, and other branches of medicine. You cannot afford to stand apart.
With its brief but comprehensive and vivid presentation including the latest development, Introduction to Supramolecular Chemistry is the best method to get into this domain. This book provides an excellent summary of information scattered across the literature. The brief but comprehensive coverage of the whole field including practically all important group of compounds forming aggregates (in particular crown ethers, cavitands, fullerenes, cyclodextrins and their complexes) provisioning full references for the discussed subjects make this book of value not only for Ph.D. students and non-specialists in this domain but also for those working in the field. The book has been found to be a particularly useful resource for students and more generally for those wanting to get the up-to-date concise account of this exciting field.

The origin of life has been investigated by many researchers from various research fields, such as Geology, Geochemistry, Physics, Chemistry, Molecular Biology, Astronomy and so on. Nevertheless, the origin of life remains unsolved. One of the reasons for this could be attributed to the different approaches that researchers have used to understand the events that happened on the primitive Earth. The origins of the main three members of the fundamental life system, as gene, genetic code and protein, could be only separately understood with these approaches. Therefore, it is necessary to understand the origins of gene, the genetic code, tRNA, metabolism, cell structure and protein not separately but comprehensively under a common concept in order to understand the origin of life, because the six members are intimately related to each other. In this monograph, the author offers a comprehensive hypothesis to explain the origin of life under a common concept. At the same time, the author offers the [GADV] hypothesis contrasting it with other current hypotheses and discusses the results of analyses of genes/proteins and the experimental data available in the exploration of the current knowledge in the field. This book is of interest for science students, researchers and the general public interested in the origin of life.

Coronavirus Drug Discovery, Volume 1: SARS-CoV-2 (COVID-19) Prevention, Diagnosis, and Treatment is the first of three volumes presenting comprehensive information on drug discovery against COVID-19. This volume provides background information on the genesis of COVID-19, the epidemiology, transmission, pathogenesis, and mutagenesis. It also presents the various treatment options, drug discovery opportunities and vaccine developmental processes. Written by global team of experts from key institutions across the globe, this book is recommended to all concerned agencies, private research firms, and consortiums working on finding a solution to COVID-19 and its variants. By design, this book will be useful to drug developers, medicinal chemists, pharmacologists, health experts, researchers, students and faculty members in industry and academia.

CONTENTS - Distillation of Naphtha, Gasoline, Kerosene, Jet Fuel and Similar Products - Vacuum Distillation - Distillation of Aromatic Hydrocarbons - Determination of High-Boiling Fractions in Isopropyl Ether - Test for Light Ends in Isobutylene and Similar Products - Flash Point by the Tag Closed Tester (Abel Flash Point) - Flash and Fire Points by the Cleveland Open Cup (Marcusson Flash Point) - Flash Point by the Pensky-Martens Closed Tester - Determining the Nonvolatile Matter in CTLA Polymers - Rapid Method for Comparative Evaporation Rates of Solvents - Gravity of Petroleum Products by the Hydrometer - Specific Gravity by Means of the Pycnometer - Viscosity Determination by the Saybolt Viscometer - Determination of the Kinematic Viscosity of Petroleum Products by Glass Viscometers - Color of Petroleum Products by the Tag-Robinson Colorimeter (Color Stability of Lubricants) - Color of White Petroleum Products by the Saybolt Chromometer - Determining the Color of Solvents by the Platinum-Cobalt System - Gardner's Method of Determining the Color of Solvents - Determination of the Acid Wash Color of Industrial Aromatic Hydrocarbons - Sulfur by Lamp (Closed System) - Doctor Test - Determination of Sulfur in Petroleum Products - Heavier than Illuminating Oils - Qualitative Detection of Sulfur Gases in Industrial Aromatic Hydrocarbons - Detection of Thiophene in Benzene - Ash and Water-Soluble Ash Content of Petroleum Oils - Cloud and Pour Points of Petroleum Products (Dilute Pour Point) - Detecting Oxidizable Matter in Solvents (Permanganate Test) - Permanaganate Time Test (Improved Visual Method) - Holde Hard Asphalt Test - Determination of the Gumming Properties of Gasoline by Means of a Copper Dish - Determination of Water in Petroleum Products by the Karl Fischer Reagent - Determination of Water in Hydrocarbon Gases by the Karl Fischer Reagent - Acidity of Industrial Aromatic Hydrocarbons - Determination of the Unsaponifiable Matter in, and the Neutralization Number of, Naphthenic Acids - Aniline Point - Wijs' Iodine Number - Bromine Number (Lewis and Bradstreet Method) - Determination of the Bromine Index of Xylene - Determination of the Available Cyclopentadiene and Methylcyclopentadienes in Dimers - Determination of Cyclopentadiene in Isoprene - Determination of the Total Conjugated Diolefin Content of Isoprene - Complete Analysis of Distilled Isobutylene by Infrared Spectrometry - Solubility of Pentachlorophenol in Petroleum Oils - Determination of Lower Ketones - Determination of the Alcohol Content by Acetylation - Water Dilution of Alcohol - Determination of Alcohol Content by Specific Gravity - Test for Mixed Alcohols (Hydroxyl Number) - Acetone in Isopropyl Alcohol by Ultraviolet Spectrometry - Ester Content of Solvents - Tests for Specification Grades of Ethyl Ether - Determination of the Carbonyl Compounds in Petrochemical Products (Carbonyl Number) - Determination of Peroxides in Isopropyl Ether - Peroxide Number of Petroleum Products - Determination of the Residual Odor of Heavy Petroleum Solvents - Amino-Type Inhibitors in Gasoline - Determination of tert-Butylcatechol Inhibitor in Unsaturated Heavy Hydrocarbons - Flash Point by the Tag Open Cup - a-Naphthol in Ether - Sampling and Testing Lacquer Solvents and Diluents - Index -

This book investigates applicability of various emerging strategies to improve important properties and features of metal oxide materials that can be used further to advance their photocatalytic and photoelectrochemical performances. The range of discussed strategies includes introduction of intrinsic and extrinsic deficiencies, fabrication of heterojunction and utilizing of metal nanoparticles in the form of deposited or embedded formations. Each of them is addressed as separate case in order to reach full and comprehensive assessment of their most fundamental principles and basics as well as accessing pivotal advantages and disadvantages. Furthermore, additional discussion is dedicated to achieving thorough awareness over methods and experimental protocols that are used to realize them and also probing changes which they induce in electronic and geometrical configurations of metal oxide materials. It is believed that this book might become a valuable addition to extend further current knowledge about photocatalysis and material processing.

Covers the most advanced computational and experimental methods for studying carbon-centered radical intermediates

With its focus on the chemistry of carbon-centered radicals and radical cations, this book helps readers fully exploit the synthetic utility of these intermediates in order to prepare fine chemicals and pharmaceutical products. Moreover, it helps readers better understand their role in complex atmospheric reactions and biological systems. Thoroughly up to date, the book highlights the most advanced computational and experimental methods available for studying and using these critically important intermediates.

Carbon-Centered Free Radicals and Radical Cations begins with a short history of the field of free radical chemistry, and then covers:

A discussion of the relevant theory

Mechanistic chemistry, with an emphasis on synthetic utility

Molecular structure and mechanism, focusing on computational methods

Spectroscopic investigations of radical structure and kinetics, including demonstrations of spin chemistry techniques such as CIDNP and magnetic field effects

Free radical chemistry in macromolecules

Each chapter, written by one or more leading experts, explains difficult concepts clearly and concisely, with references to facilitate further investigation of individual topics. The authors were selected in order to provide insight into a broad range of topics, including small molecule synthesis, polymer degradation, computational chemistry as well as highly detailed experimental work in the solid, liquid, and gaseous states.

This volume is essential for students or researchers interested in building their understanding of the role of carbon-centered radical intermediates in complex systems and how they may be used to develop a broad range of useful products.

Polaritonic chemistry is an emergent interdisciplinary field in which the strong interaction of organic molecules with confined electromagnetic field modes is exploited in order to manipulate the chemical structure and reactions of the system. In the regime of strong light-matter coupling the interaction with the electromagnetic vacuum obliges us to redefine the concept of a molecule and consider the hybrid system as a whole. This thesis builds on the foundations of chemistry and quantum electrodynamics in order to provide a theoretical framework to describe these organic light-matter hybrids. By fully embracing the structural complexity of molecules, this theory allows us to employ long-established quantum chemistry methods to understand polaritonic chemistry. This leads to predictions of substantial structural changes in organic molecules and the possibility of significantly influencing chemical reactions both in the excited and ground states of the system.

"Organic Reaction Mechanisms 2006" is the 42nd volume in this classical series. Every year, an experienced team of authors compiles these reviews, so that the reader can rely on a continuing quality of selection and presentation. Detailed author and subject indexes help the reader to find the information they are looking for. As a new service to the reader, all reaction mechanisms leading to stereospecific products are highlighted. This reflects the interest of synthetic organic chemists in such reactions and the pharmaceutical role of chiral molecules.

This collection brings together engineers, scientists, scholars, and entrepreneurs to present their novel and innovative contributions in the domain specific to metal-matrix composites and on aspects specific to processing, characterization, mechanical behavior, measurements, failure behavior, and kinetics governing microstructural influences on failure by fracture. Topics include but are not limited to: * Metals and metal-matrix composites * Nano-metal based composites * Intermetallic-based composites Contributions in the above topics connect to applications in industry-relevant areas: automotive; nuclear and clean energy; aerospace; failure analysis; biomedical and healthcare; and heavy equipment, machinery, and goods.

This volume highlights the latest research in frustrated Lewis pair (FLP) chemistry and its applications. The contributions present the recent developments of the use of FLPs in asymmetric catalysis, polymer synthesis, homogeneous and heterogeneous catalysis, as well as demonstrating their use as a pedagogical tool. The book will be of interest to researchers in academia and industry alike.

In the mid- to late-twentieth century, large scientific conflicts flared in two seemingly distinct fields of scientific inquiry. In bioenergetics, which examines how organisms obtain and utilize energy, the chemiosmotic hypothesis of Mitchell suggested a novel mechanism for energy conversion. In evolutionary biology, meanwhile, Wynne Edwards strongly articulated the view that organisms may act for the "good of the group." This work crystalized a long history of imprecise thinking about the evolution of cooperation. While both controversies have received ample attention, no one has ever suggested that one might inform the other, i.e., that energy metabolism in general and chemiosmosis in particular might be relevant to the evolution of cooperation. The central idea is nevertheless remarkably simple. Chemiosmosis rapidly converts energy, and once storage capacity is exceeded, an overabundance of product has various negative consequences. While to some extent chemiosmotic processes can be modulated, under certain circumstances it is also possible to simply disperse the products into the environment. This book argues that these two heretofore distinct scientific disciplines are connected, thereby suggesting that a ubiquitous process of energy conversion may underlie the evolution of cooperation and link major transitions in the history of life that have been regarded as mechanistically unrelated.

This book is a translation of Emil Fischer's autobiography published in 1922 by Verlag von Julius Springer, Berlin, Germany. It is the first translation of this work into English, guiding the reader through the life of a man who was one of the greatest chemists of all time. Emil Fischer published very important papers on sugars, purines, and peptides. His proof of the stereo chemistry of glucose remains one of the great intellectual and practical achievements of science. The book is of great benefit to the current and future generations of chemists, giving them the chance to get to know Emil Fischer's life story.

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 "Mechanochemical Forces as a Synthetic Tool for Zero and One-Dimensional Titanium Oxide-Based Nano-photocatalysts" is available open access under a CC BY 4.0 License via link.springer.com.

Infants and children are regularly fed with processed foods, yet despite their importance in human development, these foods are rarely studied. This important book provides an exhaustive analysis of key technologies in the development of foods for babies and children, as well as the regulation and marketing of these food products. Contributors cover different aspects of food science and technology in development of baby foods, making this text an unique source of information on the subject. Food Science, Technology, and Nutrition for Babies and Children includes relevant chapters on infant milk formulas, essential fatty acids in baby foods, baby food-based cereals and macro- and micronutrients. This book also offers alternatives from the point of view of food technology for babies and children with special diet regimes associated to metabolic or enzymatic diseases such as allergy to casein, phenylalanine (phenylketonuria or commonly known as PKU) and gluten (celiac disease), or lactose intolerance. This book also addresses some nutritional aspects of babies and children in terms of the childhood obesity, child's appetite and parental feeding. With its comprehensive scope and up-to-date coverage of issues and trends in baby and children's foods, this is an outstanding book for food scientists and technologists, food industry professionals, researchers and nutritionists working with babies and children.

This new volume "Iridium Catalysts for Organic Reactions" in the series "Topics in Organometallic Chemistry" intends to update several representative well-known reactions and to introduce other less known or new reactions in particular covering sustainability aspects. Iridium complexes are efficient in many catalytic homogeneous transformations providing high efficiency in both results, activity and selectivity. The interest of the book lies in the presentation of the advances, new perspectives and application in a variety of representative iridium-catalysed reaction. All chapters in the volume are contributed by relevant international experts in the field. The book is aimed at researchers, graduate students and synthetic chemists at all levels in academia and industry.