Author: Kerry M. DooleyPublisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 39
Book Description
Rare-Earth Oxide Catalysts for Asymmetric Ketone Synthesis
Author: Kerry M. DooleyPublisher:
ISBN:
Category : Chemical engineering
Languages : en
Pages : 39
Book Description
Metal-doped Rare Earth Oxide Catalysts for Condensations to Ketones
Author: Arvind Karkal BhatSynthesis of Earth Abundant, Non Toxic Mixed Metal Oxide Catalysts for Conversion of Renewable Carbon Sources to Drop-in Fuels
Author: Justin William WeberPublisher:
ISBN:
Category :
Languages : en
Pages : 292
Book Description
A 2-stage catalytic process for converting bio-oil oxygenates to higher value compounds for drop-in fuels was proposed. Ketonization using iron oxide catalysts prepared from red mud was implemented in a packed bed reactor system using model compounds. High levels of acetone (15-25 g/L), 2-butanone (~5 g/L), and cyclic ketones (9-13 g/L) were observed. Time-on-stream studies (8 h) indicated no measurable decline in conversion of acetol, formic acid, and levoglucosan, and only a 4% decline in acetic acid conversion. The effect of reduction pretreatment temperature on activity and surface properties of red mud was studied. Hydrogenation of ketonization products was conducted in continuous reactions using iron oxides and Pd-C catalysts. The best results were achieved in reactions using Pd-ACM (monoliths) at 180°C and 300 psi (H2), which converted ketones to alcohols at ~60-80%. Pd-C monoliths achieved higher space time yields and conversions compared to Pd-C granules.
Frontiers of Green Catalytic Selective Oxidations
Author: Konstantin P. BryliakovPublisher: Springer Nature
ISBN: 9813297514
Category : Science
Languages : en
Pages : 295
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.
Multimetallic Catalysts in Organic Synthesis
Author: Masakatsu ShibasakiPublisher: John Wiley & Sons
ISBN: 3527604324
Category : Science
Languages : en
Pages : 310
Book Description
This first book to comprehensively cover this hot topic presents the information hitherto scattered throughout smaller reviews or single book chapters to provide an introduction to this rapidly expanding field. In ten chapters, the international team of expert authors treats asymmetric syntheses, new transformations, and organometallic reactions using homo- and hetero-bimetallic catalysts. Written for advanced researchers, this very timely publication is of significant benefit to organic and organometallic chemists in both academia and industry.
Epoxidations and Hydroperoxidations of α,β-Unsaturated Ketones
Author: Corinna ReisingerPublisher: Springer
ISBN: 9783642281174
Category : Science
Languages : en
Pages : 0
Book Description
Corinna Reisinger has developed a new organocatalytic asymmetric epoxidation of cyclic and acyclic α,β-unsaturated ketones. In this thesis, Corinna documents her methodology, using primary amine salts as catalysts, and hydrogen peroxide as an inexpensive and environmentally benign oxidant. She describes the unprecedented and powerful catalytic asymmetric hydroperoxidation of α,β-enones, a process which produces optically active five-membered cyclic peroxyhemiketals in a single operation. She also proves the versatility and synthetic value of the cyclic peroxyhemiketals by converting them into highly enantioenriched acyclic and cyclic aldol products. Currently, these cyclic aldol products are inaccessible by any other synthetic means. Furthermore, cyclic peroxyhemiketals are precursors to optically active 1,2-dioxolanes which are of biological relevance. This work is a breakthrough in the field of asymmetric epoxidation chemistry and outlines the most efficient method in the literature for generating highly enantioselective cyclic epoxyketones known to date.
Fundamentals of Asymmetric Catalysis
Author: Patrick J. WalshPublisher: University Science Books
ISBN: 9781891389542
Category : Science
Languages : en
Pages : 692
Book Description
This work describes the essential aspects of enantioselective catalysis, with chapters organised by concept rather than by reaction type. Each concept is supported by examples to give the reader broad exposure to a wide range of catalysts, reactions and reaction mechanisms.
Alkaline-Earth Metal Compounds
Author: Sjoerd HarderPublisher: Springer
ISBN: 3642362702
Category : Science
Languages : en
Pages : 282
Book Description
The series Topics in Organometallic Chemistry presents critical overviews of research results in organometallic chemistry. As our understanding of organometallic structure, properties and mechanisms increases, new ways are opened for the design of organometallic compounds and reactions tailored to the needs of such diverse areas as organic synthesis, medical research, biology and materials science. Thus the scope of coverage includes a broad range of topics in pure and applied organometallic chemistry, where new breakthroughs are being achieved that are of significance to a larger scientific audience. The individual volumes of Topics in Organometallic Chemistry are thematic. Review articles are generally invited by the volume editors.
The Rare Earth Elements
Author: David A. AtwoodPublisher: John Wiley & Sons
ISBN: 111863263X
Category : Science
Languages : en
Pages : 994
Book Description
Lanthanides are of great importance for the electronic industries, this new book (from the EIBC Book Series) provides a comprehensive coverage of the basic chemistry, particularly inorganic chemistry, of the lanthanoid elements, those having a 4f shell of electrons. A chapter is describing the similarity of the Group 3 elements, Sc, Y, La, the group from which the lanthanoids originate and the group 13 elements, particularly aluminum, having similar properties. Inclusion of the group 3 and 13 elements demonstrates how the lanthanoid elements relate to other, more common, elements in the Periodic Table. Beginning chapters describe the occurrence and mineralogy of the elements, with a focus on structural features observed in compounds described in later chapters. The majority of the chapters is organized by the oxidation state of the elements, Ln(0), Ln(II), Ln(III), and Ln(IV). Within this organization the chapters are further distinguished by type of compound, inorganic (oxides and hydroxides, aqueous speciation, halides, alkoxides, amides and thiolates, and chelates) and organometallic. Concluding chapters deal with diverse and critically important applications of the lanthanoids in electronic and magnetic materials, and medical imaging.
The Catalytic Asymmetric Synthesis of Optically Active Epoxy Ketones
Author: Bertha Gerda MarsmanPublisher:
ISBN:
Category :
Languages : en
Pages : 129
Book Description