Environmentally Sustainable Catalytic Asymmetric Oxidations


Book Description

Catalysis plays a vital role in chemical, petroleum, agriculture, polymer, electronics, pharmaceutical, and other industries. Over 90 percent of chemicals originate from catalytic processes. Toughening economic and environmental constraints have proven to be a challenge for meeting the demand of novel efficient and sustainable regio- and stereoselective catalyst systems. Environmentally Sustainable Catalytic Asymmetric Oxidations provides a comprehensive overview of existing ecologically friendly catalyst systems for various asymmetric oxidation processes. Topics include: A survey of existing transition metal-based catalyst systems for asymmetric epoxidations (AEs) with O2 and H2O2 Asymmetric sulfoxidations with H2O2 on chiral metal complexes An overview of various transition metal-catalyzed oxidative transformations with H2O2 or O2 used as the terminal oxidant Organocatalytic asymmetric oxidations Catalytic processes of stereospecific oxidations of C-H functional groups The role that oxoiron(V) intermediates play in chemo- and stereoselective oxidations catalyzed by non-heme iron complexes The book concludes with a discussion of the opportunities and problems associated with the industrial application of stereoselective processes of catalytic oxidation with H2O2 and O2. It also provides examples of processes with industrial potential. Some of the catalysts presented in this book may serve as promising alternatives for existing catalysts—progressively replacing them in manufacturing processes and ultimately making the chemical industry greener and cleaner.




Environmentally Sustainable Catalytic Asymmetric Oxidations


Book Description

Catalysis plays a vital role in the chemical, petroleum, agriculture, polymer, electronics, pharmaceutical, and other industries. This book provides a comprehensive overview of existing catalyst systems for various types of catalyzed asymmetric oxidation processes exploiting "green" oxidants H2O2 and O2. In addit




Frontiers of Green Catalytic Selective Oxidations


Book Description

The demand for novel efficient and environmentally sustainable chemo, regio- and stereoselective catalyst systems for the oxidation of organic substrates is continuously growing in line with toughening economic and environmental constraints. This book addresses these issues; it consists of eleven chapters written by world-recognized experts in green and sustainable oxidation catalysis. The most urgent and challenging topics, in the judgment of the editor, such as green asymmetric epoxidations, sulfoxidatiuons, C–H oxidations; oxidation catalysis by polyoxometalates and oxidations in non-conventional solvents, etc. have been critically reviewed in this book. Both fundamental aspects, such as catalysts design, catalytic properties, nature of catalytically active sites and reaction mechanisms, and practical outlook of the oxidations have been addressed by the authors. The book appeals to a broad readership, particularly graduate students, employees of universities and research organizations, and industrial researchers, particularly those working in the areas of homogeneous oxidation catalysis, asymmetric synthesis, organocatalysis, sustainable catalytic processes and green chemistry, mechanisms of catalytic reactions, synthesis of bioactive compounds, biomimetic chemistry, etc. Konstantin Bryliakov is Leading Researcher at the Boreskov Institute of Catalysis. In 2016, he was elected Honorary Professor of the Russian Academy of Sciences.







Catalytic Aerobic Oxidations


Book Description

Oxidation reactions are an important chemical transformation in both academia and industry. Among the major advances in the field has been the development of catalytic processes, which are not only selective and efficient, but also allow the replacement of common stoichiometric oxidants with molecular oxygen, ideally from air at atmospheric pressure. This results in processes with higher atom efficiency, where water is the only side product in line with the principles of green chemistry. Focusing on the use of molecular oxygen as the terminal oxidant, this book covers recent advances in both heterogeneous and homogeneous systems, with and without metals and on the “taming” of the highly reactive oxygen gas by use of micro-flow reactors and membranes. A useful reference for industrial and academic chemists working on oxidation processes, as well as green chemists.




Ecocatalysis


Book Description

Reconquest of biodiversity; remediation of degraded and anthropic areas, prevention of environmental health risks; eco-innovation; Green industry ... The current French ambitions are closely related to an interdisciplinary approach to scientific ecology, all of which participate in the expected industrial renewal.Ecocatalysis explores the unusual combination of phytotechnologies adapted to pollution, ecological rehabilitation of polluted sites and enhancement of these processes through innovative green chemistry, all of which contribute to the development of scientific priorities; economic, ecological innovation and current environmental, of biomass conversion and transition from fossil fuels to renewable.




Sustainable Green Catalytic Processes


Book Description

Did you know that 95% of chemicals in industry are synthesized using catalysts? Sustainable Green Catalytic Processes offer concise descriptions of the application of catalysts in orchestrating eco-friendly transformation. These catalysts have enhanced selectivity for desired products while minimizing the creation of unwanted products. The book aims to present a collection of chapters related to green synthesis and methodologies and their applications in catalysis. These approaches have garnered attention from scientists in developing sustainable catalyst protocols that are environmentally greener and eco-friendly. This book aims to present a collection of chapters related to green synthesis and methodologies to motivate biochemists and engineers to provide a more sustainable environmental process. The first chapter focuses on the creation of ecologically friendly chemical processes. Another chapter frames the recent advances in heterogeneous photocatalysis and its applications. The book gives insights into the mechanisms underlying the total synthesis and functionalization of natural products through light-driven reactions. It reflects the new challenges as the chemical industry transitions to environmentally friendly and sustainable chemistry.




Modern Biocatalysis


Book Description

Das Gesamtgebiet der Biokatalyse mit allen seinen Facetten -- Mikrobiologie, Enzymologie, Molekularbiologie, Strukturbiologie, organische Chemie -- wird in diesem interdisziplinär angelegten Werk beleuchtet; insbesondere geht es um enzymatische Katalysen und Ganzzell-Katalysen. Ein Schwerpunkt liegt dabei auf der Entwicklung hochselektiver, umweltfreundlicher Prozesse zur Synthese wichtiger Verbindungsklassen.




Environmentally Friendly Alkylphosphonate Herbicides


Book Description

This book presents essential research on a class of environmentally friendly alkylphosphonate herbicides. This class of herbicides acted as a competitive inhibitor of the pyruvate dehydrogenase complex (PDHc) to control weeds. The bioreasoning and systematic approach, from basic research to field tests of candidate compounds, are introduced. The basic research covers the molecular design, chemical synthesis, biological activities evaluation, structure-activity relationship analysis and structural optimization. Subsequently, the book reviews the biochemistry of PDHc inhibitors, the selectivity between mammals and plants, and the mechanism of herbicidal activity of novel alkylphosphonates as selective PDHc inhibitors. Field trials for selected alkylphosphonate candidates as herbicides are also included. This book provides a sound basis for the rational design and development of novel herbicides as effective PDHc inhibitors with good enzyme-selective inhibition of plant PDHc between mammals and plants. These studies take full advantages of the low toxicity and low residual impact of selective PHDc inhibitors to design an effective and environmentally friendly herbicide. This book is based on twenty years of research on alkylphosphonates and phosphorus-containing PDHc inhibitors, and demonstrates how to develop these PDHc inhibitors as an effective and “green” herbicide candidate. Hong-Wu He, PhD, is a Professor at the Key Laboratory of Pesticide & Chemical Biology, Ministry of Education of China, and Director of the Institute of Pesticide Chemistry, College of Chemistry, Central China Normal University, China. Hao Peng, PhD, and Xiao-Song Tan are both Associate Professors at the Key Laboratory of Pesticide & Chemical Biology, Ministry of Education of China, College of Chemistry, Central China Normal University, China.




Catalytic Asymmetric Synthesis


Book Description

Praise for the previous editions "An excellent text . . . will no doubt provide the benchmark for comparative works for many years." —Journal of the American Chemical Society "An excellent state-of-the-art compilation of catalytic asymmetric chemistry . . . should be included in any chemistry reference collection." —Choice "This is a tremendous resource and an excellent read. I recommend immediate purchase." —Perkin Transactions Since this important work was first published in 1993, the field of catalytic asymmetric synthesis has grown explosively, spawning effective new methods for obtaining enantiomerically pure compounds on a large scale and stimulating new applications in diverse fields—from medicine to materials science. Catalytic Asymmetric Synthesis, Third Edition addresses these rapid changes through contributions from highly recognized world leaders in the field. This seminal text presents detailed accounts of the most important catalytic asymmetric reactions known today, and discusses recent advances and essential information on the initial development of certain processes. An excellent working resource for academic researchers and industrial chemists alike, the Third Edition features: Six entirely new chapters focusing on novel approaches to catalytic asymmetric synthesis including non-conventional media/conditions, organocatalysis, chiral Lewis and Bronsted acids, CH activation, carbon-heteroatom bond-forming reactions, and enzyme-catalyzed asymmetric synthesis A new section focusing on the important new reaction, asymmetric metathesis, in carbon-carbon bond-forming reactions Updated chapters on hydrogenation, carbon-carbon bond-forming reactions, hydrosilylations, carbonylations, oxidations, amplifications and autocatalysis, and polymerization reactions Retaining the best of its predecessors but now thoroughly up to date, Catalytic Asymmetric Synthesis, Third Edition serves as an excellent desktop reference and text for researchers and students from the upper-level undergraduates through experienced professionals in industry or academia.