Ruthenium-catalyzed Redox Reactions and Lipase-catalyzed Asymmetric Transformations of Alcohols PDF Download
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Author: Michaela Edin
Publisher:
ISBN: 9789171550538
Category :
Languages : en
Pages : 73
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Book Description
Author: Michaela Edin
Publisher:
ISBN: 9789171550538
Category :
Languages : en
Pages : 73
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Book Description
![Asymmetric Transformation of ß- and [gamma]-functionalized Alcohols PDF](https://books.google.com/books/content/images/frontcover/IDL0jwEACAAJ?fife=w80-h100)
Author:
Publisher:
ISBN: 9789174473070
Category :
Languages : en
Pages : 91
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Author: Robert C. Livingston
Publisher:
ISBN:
Category :
Languages : en
Pages : 472
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Book Description
Author: Jan-E. Bäckvall
Publisher: Georg Thieme Verlag
ISBN: 3132453781
Category : Science
Languages : en
Pages : 544
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Book Description
Principles and applications of DKR and DYKAT DKR and DYKAT are of ever increasing importance in the synthesis of enantiomerically enriched compounds. The preparation of enantiomerically pure compounds is of great importance in society today, in particular in pharmaceutical chemistry and in the agrochemical sector. Kinetic resolution is a popular method for differentiating two enantiomers in a racemic mixture that react at different rates with a chiral catalyst or reagent. The drawback of kinetic resolution is that the yield of one pure enantiomer is limited to a maximum of 50%. To overcome this limitation, an in situ racemization of the starting material can be combined with a kinetic resolution. This combination leads to a so called “dynamic kinetic resolution” (DKR), where the two enantiomers are in equilibrium with one another. The slow-reacting enantiomer will continuously be converted into the fast-reacting one, when the latter is transformed into the enantiomerically pure product. Thus, a racemic starting material can be transformed in catalytic processes into a single isomer of a chiral compound in up to 100% yield. DKR only applies to the resolution of racemic mixtures and the involvement of enantiomers leads to simple kinetics. When diastereomers, either as starting materials or as diastereomeric intermediates, are involved in the resolution process under dynamic conditions (via equilibria between diastereomers), the kinetics is different from DKR. These reactions are classified as “dynamic kinetic asymmetric transformations” (DYKAT). This volume covers the principles of DKR and DYKAT and presents examples of organocatalytic, chemoenzymatic, and transition-metal catalyzed approaches, including applications in the synthesis of complex, biologically active compounds.
Author: Binne Zwanenburg
Publisher: Springer Science & Business Media
ISBN: 9401009244
Category : Science
Languages : en
Pages : 455
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Book Description
Enzymes in Action is a timely survey of a modern development in organic chemistry. It is clear that bioreagents demand that organic chemists think in a different way. If they do so, they will open up new avenues of exciting, new chemistry that will permit problems to be solved in an elegant way. The first section covers the concepts necessary to understand enzymes in molecular operations. The second section covers heteroatom enzyme chemistry, with considerable attention being given to the use of enzymes in the detoxification of chemical warfare agents and their application in environmental problems. The final section highlights the strategic use of enzymes in organic chemistry. It is clear that the term `green chemistry' is appropriate, since enzyme mediated processes occur under mild, environmentally benign conditions, and enzymes enable chemists to perform new chemical operations that would otherwise be difficult to achieve at all.
Author: Gabriela Guillena
Publisher: Springer
ISBN: 3319430513
Category : Science
Languages : en
Pages : 393
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Book Description
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.
Author: Daniela Gamenara
Publisher: John Wiley & Sons
ISBN: 1118409329
Category : Science
Languages : en
Pages : 681
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Book Description
Paves the way for new industrial applications using redox biocatalysis Increasingly, researchers rely on the use of enzymes to perform redox processes as they search for novel industrial synthetic routes. In order to support and advance their investigations, this book provides a comprehensive and current overview of the use of redox enzymes and enzyme-mediated oxidative processes, with an emphasis on the role of redox enzymes in chemical transformations. The authors examine the full range of topics in the field, from basic principles to new and emerging research and applications. Moreover, they explore everything from laboratory-scale procedures to industrial manufacturing. Redox Biocatalysis begins with a discussion of the biochemical features of redox enzymes as well as cofactors and cofactor regeneration methods. Next, the authors present a variety of topics and materials to the research and development of full-scale industrial applications, including: Biocatalytic applications of redox enzymes such as dehydrogenases, oxygenases, oxidases, and peroxidases Enzyme-mediated oxidative processes based on biocatalytic promiscuity All the steps from enzyme discovery to robust industrial processes, including directed evolution, high-throughput screening, and medium engineering Case studies tracing the development of industrial applications using biocatalytic redox reactions Each chapter ends with concluding remarks, underscoring the key scientific principles and processes. Extensive references serve as a gateway to the growing body of research in the field. Researchers in both academia and industry will find this book an indispensable reference for redox biotransformations, guiding them from underlying core principles to new discoveries and emerging industrial applications.
Author: Mihály Nógrádi
Publisher: John Wiley & Sons
ISBN: 3527615687
Category : Science
Languages : en
Pages : 386
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Book Description
The state-of-the-art in stereoselective synthesis! Thoroughly revised and updated, this enlarged second edition offers a plethora of valuable information on methods and reagents in stereoselective synthesis. Methods have been selected for high efficiency and selectivity; mechanistic aspects are treated succinctly, with a strong emphasis on practical applications. For this new edition, material has been added on * homogeneous diastereoselective hydrogenations * enantioselective oxidations * novel, efficient chiral auxiliaries Much of the information given is presented in figures and tables, which makes the book a valuable reference work for the practically minded organic chemist. From reviews of the first edition: 'The extensive material in the volume should prove particularly useful to anyone involved in synthetic chemistry or teaching a course in organic chemistry.' Journal of Medicinal Chemistry 'With nearly 1400 references cited, the book contains a wealth of information and should be a useful addition to the chemist's library.' The American Scientist
Author: Takahiko Akiyama
Publisher: John Wiley & Sons
ISBN: 1119736412
Category : Science
Languages : en
Pages : 798
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Book Description
Catalytic Asymmetric Synthesis Seminal text presenting detailed accounts of the most important catalytic asymmetric reactions known today This book covers the preparation of enantiomerically pure or enriched chemical compounds by use of chiral catalyst molecules. While reviewing the most important catalytic methods for asymmetric organic synthesis, this book highlights the most important and recent developments in catalytic asymmetric synthesis. Edited by two well-qualified experts, sample topics covered in the work include: Metal catalysis, organocatalysis, photoredox catalysis, enzyme catalysis C–H bond functionalization reactions Carbon–carbon bond formation reactions, carbon–halogen bond formation reactions, hydrogenations, polymerizations, flow reactions Axially chiral compounds Retaining the best of its predecessors but now thoroughly up to date with the important and recent developments in catalytic asymmetric synthesis, the 4th edition of Catalytic Asymmetric Synthesis serves as an excellent desktop reference and text for researchers and students, from upper-level undergraduates all the way to experienced professionals in industry or academia.
Author: Bernd Plietker
Publisher: Springer Science & Business Media
ISBN: 3642146694
Category : Science
Languages : en
Pages : 227
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Book Description
Juan I. Padrón and Víctor S. Martín: Catalysis by means of Fe-based Lewis acids; Hiroshi Nakazawa*, Masumi Itazaki: Fe–H Complexes in Catalysis; Kristin Schröder, Kathrin Junge, Bianca Bitterlich, and Matthias Beller: Fe-catalyzed Oxidation Reactions of Olefins, Alkanes and Alcohols: Involvement of Oxo- and Peroxo Complexes; Chi-Ming Che, Cong-Ying Zhou, Ella Lai-Ming Wong: Catalysis by Fe=X Complexes (X=NR, CR2); René Peters, Daniel F. Fischer and Sascha Jautze: Ferrocene and Half Sandwich Complexes as Catalysts with Iron Participation; Markus Jegelka, Bernd Plietker: Catalysis by Means of Complex Ferrates.
