Activation and Functionalization of Methane by Homogeneous Catalysts in Acidic Solvents PDF Download

Author: Oleg Alekseyevich Mironov
Publisher:
ISBN:
Category :
Languages : en
Pages : 394

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Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 4

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The overall goal of our DOE-funded research is to develop a chemical paradigm for polyoxoanion-supported transition-metal catalysis, with an emphasis on small molecule (H2, O2, CH4) catalytic activation and functionalization (CH4, RH). Sub-goals or sub-projects include solution (i.e. homogeneous) catalysis studies, and then the preparation and study where warranted of a new class of novel, polyoxoanion-based solid-state (heterogeneous) catalysts. Kinetic and mechanistic studies are an integral part of this work. The sub-projects are: catalytic and mechanistic studies of H2, O2, CH4 and other alkane activations, O2 activation and catalytic oxidations using (1,5-COD)Ir{center dot}P2W15Nb3O628−, and alkane, olefin and arene hydroxylations by P2W1--O61MnO617− and PhIO.

Author: Pedro J. Pérez
Publisher: Springer Science & Business Media
ISBN: 9048136989
Category : Science
Languages : en
Pages : 277

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Over the past decade, much research effort has been devoted to the design and synthesis of new reagents and catalysts that can influence carbon-hydrogen bond activation, mainly because of the prospect that C−H activation could enable the conversion of cheap and abundant alkanes into valuable functionalized organic compounds. Alkane C-H Activation by Single-Site Metal Catalysis presents the current state-of-the-art development in the catalytic systems for the catalytic trans-formations of alkanes under homogeneous conditions. Chapter 1 offers a comprehensive summary of the main discoveries realized so far. Chapter 2 reviews the so-called electrophilic activation, initiated by Shulpín in the late 60s, and the base for the Catalytica system. Chapter 3 examines the catalytic borylation of alkanes, discovered by Hartwig, whereas chapter 4 provides an updated vision of the alkane dehydrogenation reaction. Chapter 5 covers the oxygenation of C-H bonds, a field of enormous interest with bioinorganic im-plications, and finally chapter 6 presents the functionalization of alkane C-H bonds by carbene or nitrene insertion. The history of C-H bond activation, and the current research described in this book, highlight the current research and present the reader with an outlook of this field which continues to be explored by an increasingly visionary and enthusiastic group of organic, organometallic, biological and physical chemists.

Author: Mark Thomas Zerella
Publisher:
ISBN:
Category :
Languages : en
Pages : 276

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Author: M.M. Bhasin
Publisher: Springer Science & Business Media
ISBN: 1461518075
Category : Science
Languages : en
Pages : 338

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Natural gas, an abundant natural energy and chemical resource, is underutilized. Its inherent high energy content is compromised by its volatility. Storage and transportation problems abound for liquified natural gas. Several of the drawbacks of the utilization of natural gas, particularly its high volatility, could be offset by development of an economical and efficient process for coupling and/or further homologation of its principal component, methane. Alternatively, other conversion strategies such as partial oxidation to methanol and syngas, to oxygenates or conversion to such products via the intermediacy of chlorides should also be considered. Given the energy-intensive regimes necessary for the likely activation of methane, it was inevitable that researchers would tum to the use of heterogeneous catalysts. Heterogeneous catalysis is now a relatively mature discipline with numerous and diverse reactions being explored alongside informative studies on surface characterization, mechanism, and theory. Relationships to important related areas such as homogeneous catalysis, organometallic chemistry, and inorganic chemistry have become firmly established within this discipline. The field of methane and alkane activation is now over ten years old. The first decade of investigation produced results plagued by low yields and low-moderate conversions with well-articulated mechanistic limitations. As we begin the second decade of inquiry, novel strategies have brought increasing yields and conversions to such products as ethane, ethylene, methanol, and formaldehyde. These new approaches utilize separation of products via membranes or adsorbents. Moreover, additional mechanistic insight has been forthcoming from theoretical and computational examination as well as experimental investigation.

Author: Toshihide Baba
Publisher: Springer Nature
ISBN: 9811541329
Category : Science
Languages : en
Pages : 220

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This book introduces various types of reactions to produce chemicals by the direct conversion of methane from the point of view of mechanistic and functional aspects. The chemicals produced from methane are aliphatic and aromatic hydrocarbons such as propylene and benzene, and methanol. These chemicals are created by using homogeneous catalysts, heterogeneous catalysts such as zeolites, and biocatalysts such as enzymes. Various examples of methane conversion reactions that are discussed have been chosen to illustrate how heterogeneous and homogenous catalysts and biocatalysts and/or their reaction environments control the formation of highly energetic species from methane contributing to C-C and C-O bond formation.

Author: Wh-Hsun Cheng
Publisher: CRC Press
ISBN: 9780824792237
Category : Science
Languages : en
Pages : 346

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This work details the technical, environmental and business aspects of current methanol production processes and presents recent developments concerning the use of methanol in transportation fuel and in agriculture. It is written by internationally renowned methanol experts from academia and industry.

Author: Karen I. Goldberg
Publisher: ACS Symposium
ISBN: 9780841238497
Category : Science
Languages : en
Pages : 0

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Book Description
Activation and Functionalization of C-H Bonds explores recent developments in the reaction chemistry of solution-phase transition-metal based systems with simple hydrocarbons and with more complex organic molecules. More than 20 internationally leading research groups contributed to this volume, and their chapters cover such topics as fundamental theoretical and mechanistic studies of C-H bond activation by metal complexes, catalytic systems for alkane functionalization, and new applications in synthetic organic chemistry. An introductory chapter offers an overview of stoichiometric and catalytic reactions of C-H bonds with transition metal complexes. The C-H bond is the most widespread linkage in organic chemistry, present in virtually every organic molecule. Unfortunately, C-H bonds are famously resistant to selective chemical transformations. The development of methods for their selective transformations has enormous potential value in fields ranging from the chemistry of fuels (for example, the conversion of methane to methanol) to the synthesis of the most complex organic molecules.

Author: Armando J. L. Pombeiro
Publisher: John Wiley & Sons
ISBN: 111937880X
Category : Science
Languages : en
Pages : 680

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Book Description
Presents state-of-the-art information concerning the syntheses of valuable functionalized organic compounds from alkanes, with a focus on simple, mild, and green catalytic processes Alkane Functionalization offers a comprehensive review of the state-of-the-art of catalytic functionalization of alkanes under mild and green conditions. Written by a team of leading experts on the topic, the book examines the latest research developments in the synthesis of valuable functionalized organic compounds from alkanes. The authors describe the various modes of interaction of alkanes with metal centres and examine theoxidative alkane functionalization upon C-O bond formation. They address the many types of mechanisms, discuss typical catalytic systems and highlight the strategies inspired by biological catalytic systems. The book also describes alkane functionalization upon C-heteroatom bond formation as well as oxidative and non-oxidative approaches. In addition, the book explores non-transition metal catalysts and metal-free catalytic systems and presents selected types of functionalization of sp3 C-H bonds pertaining to substrates other than alkanes. This important resource: Presents a guide to the most recent advances concerning the syntheses of valuable functionalized organic compounds from alkanes Contains information from leading experts on the topic Offers information on the catalytic functionalization of alkanes that allows for improved simplicity and sustainability compared to current multi-stage industrial processes Explores the challenges inherent with the application of alkanes as starting materials for syntheses of added value functionalized organic compounds Written for academic researchers and industrial scientists working in the fields of coordination chemistry, organometallic chemistry, catalysis, organic synthesis and green chemistry, Alkane Functionalization is an important resource for accessing the most up-to-date information available in the field of catalytic functionalization of alkanes.

Author: Hua Song
Publisher: Springer Nature
ISBN: 3030884244
Category : Technology & Engineering
Languages : en
Pages : 264

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This book discusses effective and alternative uses for natural gas (NG) and highlights the utilization of NG in the field of methane activation and chemical production. It details the techniques used during the reforming process of petrochemical and bio-derived fuels and it presents cutting-edge research that describes the utilization of NG that enables it to be more cost-effective and eliminate the expensive greenhouse gas emitting process of hydrogen production. The book addresses three major topics: NG use in upstream heavy oil and bitumen upgrading, NG and its use in downstream oil refining through co-aromatization of various feeds in the petrochemical industry, and NG use in the upgrading of bio-derived fuels and discusses alternative uses of NG. In-depth chapters demonstrate uses for NG beyond heating homes, through catalysis and in-situ hydrogen donation, and its potential applications for the petrochemical and biofuel industries.