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Application Of Novel Methods For The Measurement Of Heavy Atom Isotope Effects To The Study Of Reactions Of Methyl Benzoate
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Book Synopsis Application of Novel Methods for the Measurement of Heavy Atom Isotope Effects to the Study of Reactions of Methyl Benzoate by : John Francis Marlier
Download or read book Application of Novel Methods for the Measurement of Heavy Atom Isotope Effects to the Study of Reactions of Methyl Benzoate written by John Francis Marlier and published by . This book was released on 1978 with total page 446 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1978 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Atom Isotope Effects by : E. Buncel
Download or read book Heavy Atom Isotope Effects written by E. Buncel and published by . This book was released on 1992 with total page 368 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1977 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Deuterium Kinetic Isotope Effects as Mechanistic Probes for Synthetically Useful Cyclic Hydrogen Transfers by :
Download or read book Deuterium Kinetic Isotope Effects as Mechanistic Probes for Synthetically Useful Cyclic Hydrogen Transfers written by and published by . This book was released on 2016 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen transfer reactions are among the most fundamental organic reactions. They are involved in nearly all enzyme-catalyzed reactions necessary for the sustenance of life, and they are often involved in key steps in synthetically useful reductions. Notable among synthetically useful reactions are the class of reactions known as C-H bond functionalization. It is surprising, then, that this most fundamental chemical event is so poorly understood. To address this knowledge gap, we have developed new experimental and computational approaches that allow interrogation of the core physical nature of cyclic hydrogen transfer reactions. In general, our laboratory utilizes kinetic isotope effects (KIEs) to probe chemical reactions. This technique involves accurately determining how replacement of atoms with their heavier isotopes affects the reaction rate (or product distribution). In order to extract the most insightful information from KIE studies, suitable experiments and measurement methods need to be well-designed and carefully executed. This dissertation is composed of four chapters. The first chapter serves as a general introduction that lays out the background of the mechanistic study of cyclic hydrogen transfer, the concepts of kinetic isotope effect and a concise review of traditional and new techniques that utilize KIEs to elucidate reaction mechanisms. The remaining chapters present three unique studies that culminate in a unified view of cyclic hydrogen transfers. Each study is designed to interrogate the key physical aspects of a synthetically useful and mechanistically interesting hydrogen transfer. The first study explores the Chugaev elimination, which is used to transform alcohols into alkenes in a typically regioselective manner. In this study, we have used a combination of intermolecular and intramolecular 2H KIE measurements to demonstrate that this reaction is dominated by quantum mechanical behavior even though it occurs at elevated temperatures. Comparison between the experimental and computational results imply that the observed KIEs are influenced by the location of the bottleneck (or transition state) which is found to be dependent on the isotopic substitution. Chapter 3 explores the Cope elimination, which can be used to install alkenes adjacent to an amine, demonstrated that seemingly simple cyclic hydrogen transfer reactions can proceed simultaneously via multiple mechanisms depending upon driving force and temperatures. Our approaches in the Cope and Chugaev eliminations were then utilized to explore an exciting new C-H functionalization reaction developed by DuBois. This study demonstrates that cyclic H-transfers mediated by a Ru-nitrene species are fundamentally similar to relatively simpler syn-b eliminations in terms of the involvement of quantum mechanical phenomena. The reaction models built with prototype reactions can be generalized to more complicated metal catalyzed reactions to facilitate a better understanding of the reaction in terms of both reactivity and selectivity.
Book Synopsis Comprehensive Dissertation Index: Chemistry, E-O by : University Microfilms International
Download or read book Comprehensive Dissertation Index: Chemistry, E-O written by University Microfilms International and published by . This book was released on 1984 with total page 858 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book INIS Atomindex written by and published by . This book was released on 1995 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comprehensive Dissertation Index by :
Download or read book Comprehensive Dissertation Index written by and published by . This book was released on 1989 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Isotope Effects on Enzyme-catalyzed Reactions by : William Wallace Cleland
Download or read book Isotope Effects on Enzyme-catalyzed Reactions written by William Wallace Cleland and published by . This book was released on 1977 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Heavy Atom Isotope Effects in Organic Reaction Mechanism Studies by : Arthur Fry
Download or read book Heavy Atom Isotope Effects in Organic Reaction Mechanism Studies written by Arthur Fry and published by . This book was released on 1969 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :University Microfilms International Publisher :Ann Arbor, Mich. : University Microfilms International ISBN 13 : Total Pages :712 pages Book Rating :4.F/5 ( download)
Book Synopsis Comprehensive Dissertation Index by : University Microfilms International
Download or read book Comprehensive Dissertation Index written by University Microfilms International and published by Ann Arbor, Mich. : University Microfilms International. This book was released on 1984 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Isotope Effects in Chemical Reactions by : C.L. Collins
Download or read book Isotope Effects in Chemical Reactions written by C.L. Collins and published by . This book was released on 1970 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Isotope Effects on Reaction Rates by : Lars C. S. Melander
Download or read book Isotope Effects on Reaction Rates written by Lars C. S. Melander and published by . This book was released on 1960 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Novel Uses of Isotope Effects to Elucidate Enzyme Reaction Mechanisms by : Jeffrey D. Hermes
Download or read book Novel Uses of Isotope Effects to Elucidate Enzyme Reaction Mechanisms written by Jeffrey D. Hermes and published by . This book was released on 1983 with total page 506 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Isotope Effects in Gas-phase Chemistry by : Jack A. Kaye
Download or read book Isotope Effects in Gas-phase Chemistry written by Jack A. Kaye and published by . This book was released on 1992 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Focuses on measurements and calculations of isotope effects in chemical reactions and photodissociation. Covers a variety of processes, ranging from the very simple (atom-diatom reactions) to the complex (multiligand coordination compounds) and includes both neutral and ionic species. Examines a variety of applications, including those to astrophysical, planetary, and atmospheric science. Both light- and heavy-atom isotope effects are covered.
Download or read book National Union Catalog written by and published by . This book was released on 1983 with total page 1036 pages. Available in PDF, EPUB and Kindle. Book excerpt: Includes entries for maps and atlases.
Book Synopsis Directory of Graduate Research by : American Chemical Society. Committee on Professional Training
Download or read book Directory of Graduate Research written by American Chemical Society. Committee on Professional Training and published by . This book was released on 1979 with total page 1030 pages. Available in PDF, EPUB and Kindle. Book excerpt: