Download or read book Ultrasound in Synthesis written by Steven V. Ley and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of heat and light on chemical reactions have long been known and un derstood. Ultrasound has been known to promote chemical reactions for the past 60 years, but despite this, it did not attract the attention of synthetic chemists until recently. This arose historically from early studies which concentrated almost exclu sively on reactions in aqueous media and was also, in some measure, due to the availability of suitable technology. Since the early 1980s a plethora of literature has appeared of direct interest to synthetic chemists and the field has been developing rapidly. The aim of this book is to bring the background of this fascinating field to the atten tion of a wider audience. It explores the literature to date and attempts to indicate other areas in which ultrasound may be exploited. It also hopes to explode some of the myths surrounding this area which have hitherto been regarded by the synthetic community as a bit of a black art! Existing books and reviews have tended to concentrate on the physics of sonochem istry and to catalogue the instances in which ultrasound has proved useful in tack ling synthetic problems. Our aim has been to stress the relevance of this technique to synthetic chemists and we have included a section which deals with the practical aspects of carrying out these reactions.
Download or read book Total Synthesis of Bioactive Natural Products written by Goutam Brahmachari and published by Elsevier. This book was released on 2019-04-27 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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
Download or read book Sonochemistry written by Juan Carlos Colmenares and published by Springer. This book was released on 2017-03-15 with total page 287 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.
Download or read book Handbook on Applications of Ultrasound written by Dong Chen and published by CRC Press. This book was released on 2011-07-26 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultrasonic irradiation and the associated sonochemical and sonophysical effects are complementary techniques for driving more efficient chemical reactions and yields. Sonochemistry-the chemical effects and applications of ultrasonic waves-and sustainable (green) chemistry both aim to use less hazardous chemicals and solvents, reduce energy consumpt
Download or read book Catalyst free Organic Synthesis written by Goutam Brahmachari and published by Royal Society of Chemistry. This book was released on 2017-11-06 with total page 410 pages. Available in PDF, EPUB and Kindle. Book excerpt: Explaining methods for carrying out chemical syntheses without the use of catalysts, this book shows how avoiding catalysts during synthesis can mean less use of toxic chemicals, environmentally damaging chemicals, or endangered elements, and lower costs.
Download or read book New Trends in Green Chemistry written by V.K. Ahluwalia and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic chemistry has played a vital role in the development of diverse molecules which are used in medicines, agrochemicals and polymers. Most ofthe chemicals are produced on an industrial scale. The industrial houses adopt a synthesis for a particular molecule which should be cost-effective. No attention is paid to avoid the release of harmful chemicals in the atmosphere, land and sea. During the past decade special emphasis has been made towards green synthesis which circumvents the above problems. Prof. V. K. Ahluwalia and Dr. M. Kidwai have made a sincere effort in this direction. This book discusses the basic principles of green chemistry incorporating the use of green reagents, green catalysts, phase transfer catalysis, green synthesis using microwaves, ultrasound and biocatalysis in detail. Special emphasis is given to liquid phase reactions and organic synthesis in the solid phase. I must congratulate both the authors for their pioneering efforts to write this book. Careful selection of various topics in the book will serve the rightful purpose for the chemistry community and the industrial houses at all levels. PROF. JAVED IQBAL, PhD, FNA Distinguished Research Scientist & Head Discovery Research Dr. Reddy's Laboratories Ltd.
Download or read book Sonochemistry written by Suresh C. Ameta and published by CRC Press. This book was released on 2018-06-13 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: Traditionally heat and light are thought as energy sources to drive a particular chemical reaction, but now ultrasound is a promising energy source for this purpose. The collapse of a bubble generates a wide range of high temperatures and pressures, and therefore, use of ultrasound has a considerable potential in chemical and allied sciences. Ultrasound-assisted reactions are green and economically viable alternatives to conventional techniques. This new volume presents a complete picture of ultrasound-assisted reactions and technologies that can be used in organic synthesis, polymer synthesis and degradation, nanomaterials, wastewater treatment, food ingredients and products, pharmaceutical applications, bioenergy applications, and more. This volume aims to shed light on the diversified applications of ultrasound and its significant role as a green chemical pathway. Sonochemistry deals with the effect of ultrasonic waves on chemical systems. It has green value because of non-hazardous acoustic radiation and is therefore duly recognized as a green chemistry by synthetic chemists as well as environmentalists. There is no direct interaction of ultrasound with molecular species, but the observed chemical and physical effects of ultrasound are due to the cavitational collapse, which produces drastic conditions of temperature and pressure locally. It induces the formation of various chemical species, which cannot be easily attained under conventional conditions. Sometimes, these species are responsible for driving towards an unusual reactivity in molecular entities. This book, Sonochemistry: An Emerging Green Technology, provides the complete development of sonochemistry, starting with an introduction and basic concepts of sonochemistry and proceeding on to different types of sonochemical reactions, instrumentation, use of ultrasound in driving particular chemical reactions, and its applications in various fields, such as polymer synthesis, decontamination of water and wastewater, preparation of nanomaterials, food technology, pharmaceutical sciences, etc. The book also briefly discusses some areas that utilize ultrasounds of different frequencies. These include food products and their processing; anaerobic digestion of waste; and medical applications such as ultrasonography, sonodynamic therapy, drug delivery, etc. Sonochemistry will be successfully used on an industrial scale in pharmaceutical drugs, polymers, nanomaterials, food technology, material science, biogas production, etc. in years to come and will be an established green chemical technology of the future.
Download or read book Handbook of Ultrasonics and Sonochemistry written by Muthupandian Ashokkumar and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultrasound Assisted Organic Synthesis written by 1st Navnath Ramkrishna Dalvi, 1st and published by . This book was released on 2021-12-19 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The present book has written especially for the research and post graduate students working in the area of Green and Synthetic Organic Chemistry. Green chemistry principles are of highest interest due to their use as new methodology and environmentally benign synthetic strategies for different series of various heterocyclic compounds. Hence, the green synthesis of organic molecules has generated vast interest to organic as well as for medicinal chemists and industrialists. Keeping this in mind, I have undertaken the compilation of different syntheses from reputed research articles. The book consists of five topics including introduction, general method of synthesis by Ultrasound irradiation, characterization data and literature survey. This book has demonstrated the various organic reactions by sonochemical synthesis with specified example from my Ph. D. work. I hope this book will help many researchers who are working in the area of green chemistry as well as synthetic organic chemistry for various heterocycles.
Download or read book Green Sustainable Process for Chemical and Environmental Engineering and Science written by Rajender Boddula and published by Elsevier. This book was released on 2021-11-17 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: Green Sustainable Process for Chemical and Environmental Engineering and Science: Switchable Solvents explores the preparation, properties, chemical processes and applications of this class of green solvents. The book provides an in-depth overview on the area of switchable solvents in various industrial applications, focusing on the purification and extraction of chemical compounds utilizing green chemistry protocols that include liquid-liquid, solid-liquid, liquid-gas and lipids separation technologies. In addition, it includes recent advances in greener extraction and separation processes. This book will be an invaluable guide to students, professors, scientists and R&D industrial specialists working in the field of sustainable chemistry, organic, analytical, chemical engineering, environmental and pharmaceutical sciences. - Provides a broad overview of switchable solvents in sustainable chemical processes - Compares the use of switchable solvents as greener solvents over conventional solvents - Outlines eco-friendly organic synthesis and chemical processes using switchable solvents - Lists various industrial separations/extraction processes using switchable solvents
Download or read book Ultrasound in Chemistry written by José-Luis Capelo-Martínez and published by John Wiley & Sons. This book was released on 2009-01-07 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mit Ultraschall kann man den Fortgang von Reaktionen verfolgen und Arbeitsschritte in der Analytik beschleunigen. Neben den klassischen Anwendungen in der Extraktion stellt dieser Band auch moderne Einsatzgebiete, unter anderem in der Proteomforschung und Polymertechnik, vor. Spezielle Kapitel widmen sich den erforderlichen Instrumenten wie Ultraschallbädern und -sonden.
Download or read book Sonochemistry written by T. J. Mason and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an increasing interest in the exploitation of power ultrasound in chemistry and processing (sonochemistry). This text was written as a result of the many requests from potential sonochemists for a practical introduction to the topic.
Download or read book Sonochemistry and the Acoustic Bubble written by Franz Grieser and published by Elsevier. This book was released on 2015-04-21 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sonochemistry and the Acoustic Bubble provides an introduction to the way ultrasound acts on bubbles in a liquid to cause bubbles to collapse violently, leading to localized 'hot spots' in the liquid with temperatures of 5000° celcius and under pressures of several hundred atmospheres. These extreme conditions produce events such as the emission of light, sonoluminescence, with a lifetime of less than a nanosecond, and free radicals that can initiate a host of varied chemical reactions (sonochemistry) in the liquid, all at room temperature. The physics and chemistry behind the phenomena are simply, but comprehensively presented. In addition, potential industrial and medical applications of acoustic cavitation and its chemical effects are described and reviewed. The book is suitable for graduate students working with ultrasound, and for potential chemists and chemical engineers wanting to understand the basics of how ultrasound acts in a liquid to cause chemical and physical effects.
Download or read book Ultrasonic Synthesis of Functional Materials written by Muthupandian Ashokkumar and published by Springer. This book was released on 2016-01-11 with total page 49 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book begins by giving a summary of sonochemistry and explains how a chemical reaction can be induced by the interaction of sound waves and gas bubbles in liquids. The work outlines how primary and secondary radicals combined with the physical effects generated during acoustic cavitation are active in the ultrasonic synthesis of a variety of functional materials. The brief covers hot topics that include ultrasonic synthesis of various functional materials covering the following broad areas: acoustic cavitation and sonochemistry, synthesis of functional polymers and their applications, synthesis of functional inorganic materials and their applications, improving functionality of food/dairy systems, synthesis of functional biomaterials and their applications, synthesis of graphene based catalytic materials. Theory is kept to a minimum. The book is aimed at individuals at universities and will also interest those in industry. It is suitable for all levels.
Download or read book Sonochemistry and Sonoluminescence written by L.A. Crum and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sonochemistry is studied primarily by chemists and sonoluminescence mainly by physicists, but a single physical phenomenon - acoustic cavitation - unites the two areas. The physics of cavitation bubble collapse, is relatively well understood by acoustical physicists but remains practically unknown to the chemists. By contrast, the chemistry that gives rise to electromagnetic emissions and the acceleration of chemical reactions is familiar to chemists, but practically unknown to acoustical physicists. It is just this knowledge gap that the present volume addresses. The first section of the book addresses the fundamentals of cavitation, leading to a more extensive discussion of the fundamentals of cavitation bubble dynamics in section two. A section on single bubble sonoluminescence follows. The two following sections address the new scientific discipline of sonochemistry, and the volume concludes with a section giving detailed descriptions of the applications of sonochemistry. The mixture of tutorial lectures and detailed research articles means that the book can serve as an introduction as well as a comprehensive and detailed review of these two interesting and topical subjects.
Download or read book Synthetic Organic Sonochemistry written by Jean-Louis Luche and published by Springer Science & Business Media. This book was released on 1998-09-30 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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).
Download or read book Sonochemical Reactions written by Selcan Karakuş and published by BoD – Books on Demand. This book was released on 2020-03-25 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book was written by authors in the field of ultrasound-assited synthesis and their applications. Among others, some of the topics covered are: ultrasound-assited synthesis of metal/metal oxide nanoparticles, graphene nanosheets, and ultrasound applications. In this book, authors focused on recent studies, applications, and new technological developments on fundamental properties of the ultrasound process.
