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Palladiumii Catalyzed 14 Oxidations Of 13 Dienes
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Book Synopsis Palladium(II)-catalyzed 1,4-oxidations of Conjugated Dienes by : Renzo C. Verboom
Download or read book Palladium(II)-catalyzed 1,4-oxidations of Conjugated Dienes written by Renzo C. Verboom and published by . This book was released on 2004 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Palladium Catalyzed Oxidation of Hydrocarbons by : P. Henry
Download or read book Palladium Catalyzed Oxidation of Hydrocarbons written by P. Henry and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 449 pages. Available in PDF, EPUB and Kindle. Book excerpt: The field of organometallic chemistry has emerged over the last twenty-five years or so to become one of the most important areas of chemistry, and there are no signs of abatement in the intense current interest in the subject, particularly in terms of its proven and potential application in catalytic reactions involving hydrocarbons. The development of the organometallic/ catalysis area has resulted in no small way from many contributions from researchers investigating palladium systems. Even to the well-initiated, there seems a bewildering and diverse variety of organic reactions that are promoted by palladium(II) salts and complexes. Such homogeneous reactions include oxidative and nonoxidative coupling of substrates such as olefins, dienes, acetylenes, and aromatics; and various isomerization, disproportionation, hydrogenation, dehydrogenation, car bonylation and decarbonylation reactions, as well as reactions involving formation of bonds between carbon and halogen, nitrogen, sulfur, and silicon. The books by Peter M. Maitlis - The Organic Chemistry of Palladium, Volumes I, II, Academic Press, 1971 - serve to classify and identify the wide variety of reactions, and access to the vast literature is available through these volumes and more recent reviews, including those of J. Tsuji [Accounts Chem. Res. , 6, 8 (1973); Adv. in Organometal. , 17, 141 (1979)], R. F. Heck [Adv. in Catat. , 26, 323 (1977)], and ones by Henry [Accounts Chem. Res. , 6, 16 (1973); Adv. in Organometal. , 13, 363 (1975)]. F. R. Hartley's book - The Chemistry of Platinum and Palladium, App!. Sci. Pub!.
Book Synopsis Palladium(II)-catalyzed 1,4-oxidations of 1,3-dienes by : Andreas Palmgren
Download or read book Palladium(II)-catalyzed 1,4-oxidations of 1,3-dienes written by Andreas Palmgren and published by Uppsala Universitet. This book was released on 1999 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Palladium (II) written by Catrin Jonasson and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Applications of Intramolecular Palladium-catalyzed 1,4-oxidations of Conjugated Dienes by : Pher Andersson
Download or read book Development and Applications of Intramolecular Palladium-catalyzed 1,4-oxidations of Conjugated Dienes written by Pher Andersson and published by . This book was released on 1991 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Studies on Palladium(II)-catalyzed Aerobic Oxidations of Olefins and Conjugated Dienes in DMSO by : Magnus Rönn
Download or read book Studies on Palladium(II)-catalyzed Aerobic Oxidations of Olefins and Conjugated Dienes in DMSO written by Magnus Rönn and published by . This book was released on 1997 with total page 51 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Mechanistic Studies of Palladium-catalysed Oxidations of Conjugated Dienes and Olefins by : Helena Grennberg
Download or read book Development and Mechanistic Studies of Palladium-catalysed Oxidations of Conjugated Dienes and Olefins written by Helena Grennberg and published by . This book was released on 1992 with total page 55 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development of Palladium-catalyzed Difunctionalization Reactions of 1,3-dienes and Alkenes by : Longyan Liao
Download or read book Development of Palladium-catalyzed Difunctionalization Reactions of 1,3-dienes and Alkenes written by Longyan Liao and published by . This book was released on 2012 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Palladium-catalyzed Difunctionalization Reactions of Ethylene and Dienes by : Vaneet Saini
Download or read book Palladium-catalyzed Difunctionalization Reactions of Ethylene and Dienes written by Vaneet Saini and published by . This book was released on 2015 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective Palladium(II)-catalyzed Transformations of 1,5-dienes by : Louise Tottie
Download or read book Selective Palladium(II)-catalyzed Transformations of 1,5-dienes written by Louise Tottie and published by . This book was released on 1992 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Palladium-catalyzed Annulation of Dienes and Acetylenes by : John Mathew Zenner
Download or read book Palladium-catalyzed Annulation of Dienes and Acetylenes written by John Mathew Zenner and published by . This book was released on 1996 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis New Synthetic Methods Based on Palladium-catalyzed Transformations of Dienes by : Thomas Antonsson
Download or read book New Synthetic Methods Based on Palladium-catalyzed Transformations of Dienes written by Thomas Antonsson and published by . This book was released on 1988 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Selective Palladium-catalyzed 1,4-functionalization by : Joakim Löfstedt
Download or read book Selective Palladium-catalyzed 1,4-functionalization written by Joakim Löfstedt and published by . This book was released on 2002 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Palladium-catalyzed Difunctionalization Reactions of 1,3-dienes and Terminal Alkenes Via P-allyl Stabilized Intermediates by : Matthew Scott McCammant
Download or read book Palladium-catalyzed Difunctionalization Reactions of 1,3-dienes and Terminal Alkenes Via P-allyl Stabilized Intermediates written by Matthew Scott McCammant and published by . This book was released on 2016 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis The Chemistry of Catalytic Hydrocarbon Conversions by : Herman Pines
Download or read book The Chemistry of Catalytic Hydrocarbon Conversions written by Herman Pines and published by Elsevier. This book was released on 2012-12-02 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chemistry of Catalytic Hydrocarbon Conversions covers the various chemical aspects of catalytic conversions of hydrocarbons. This book is composed of eight chapters that include catalytic synthesis of hydrocarbons from carbon monoxide, hydrogen, and methanol. The opening chapters examine various acid- and base-catalyzed reactions, such as isomerization, polymerization, oligomerization, alkylation, catalytic cracking, reforming, hydrocracking, and hydrogenation. The subsequent chapters are devoted to specific catalytic reactions, including heterogeneous hydrogenation, dehydrogenation, aromatization, and oxidation. Other chapters describe the homogeneous catalysis by transition metal organometallic catalysts and the metathesis of unsaturated hydrocarbons. The concluding chapter deals with the synthesis of liquid hydrocarbon fuels from carbon monoxide, hydrogen, methanol, and dimethyl ether. This book is of great benefit to petroleum chemists, engineers, and researchers.
Book Synopsis Palladium-Catalyzed Oxidative Couplings and Applications to the Synthesis of Macrocycles and Strained Cyclic Dienes by : Byron Boon
Download or read book Palladium-Catalyzed Oxidative Couplings and Applications to the Synthesis of Macrocycles and Strained Cyclic Dienes written by Byron Boon and published by . This book was released on 2017 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: The palladium(II)-catalyzed oxidative macrocyclization of bis(vinylboronate esters) is demonstrated as an efficient method for the synthesis of macrocyclic dienes. The macrocyclization reactions feature mild conditions due to a palladium(II) catalytic cycle which obviates the need for a high energy oxidative addition step of standard palladium(0) catalytic cycles. Instead, this oxidative coupling is promoted by chloroacetone as a terminal re-oxidant in the catalytic cycle. An extension of the oxidative coupling/macrocyclization strategy is highlighted where molecular oxygen may be used in place of chloroacetone as the terminal re-oxidant. Homocoupling reactions of vinylboronate esters served as a template to screen reaction conditions for this method. From these experiments, multiple reaction conditions gave the oxidative homocoupling product in high yield. These reaction conditions were successfully applied to the oxidative macrocyclization of a bis(vinylboronate ester) using molecular oxygen as a re-oxidant. Syntheses of strained cyclic dienes were accomplished via the palladium(II)-catalyzed oxidative cyclizations of terminal bis(vinylboronate esters). The reactions generated strained (E,E)-1,3-dienes that underwent spontaneous 4 -electrocyclizations to form bicyclic cyclobutenes. Formation of the cyclobutenes is driven by strain in the medium-ring (E,E)-1,3-diene intermediates. Thermal ring openings of the cyclobutenes give (Z,Z)-1,3-diene products, again for thermodynamic reasons. These results are in contrast with typical acyclic trans-3,4-dialkyl cyclobutenes, which favor outward torquoselective ring-openings to give (E,E)-1,3-dienes. DFT calculations verified the thermodynamic versus kinetic control of the reactions and kinetic studies are in excellent agreement with the calculated energy changes. Investigations on the transannular Pauson-Khand reaction are also highlighted. The Pauson-Khand reaction is a powerful tool for the synthesis of cyclopentenones through the efficient [2+2+1] cycloaddition of dicobalt alkyne complexes with alkenes. While intermolecular and intramolecular variants are widely known, transannular versions of this reaction are unknown and the basis of this study. Our successful transannular Pauson-Khand reaction required a cyclic enyne incorporating one short three-membered linker chain and a rigid aryl linker in the backbone of the long linker chain. This rigidity of the aryl linker is proposed to facilitate the transannular [2+2+1] cyclization. Computational studies revealed that transannular Pauson-Khand reactions are thermodynamically favored for cyclic enynes featuring a long linker of at least 5 carbons, but with smaller chains the reactions are thermodynamically disfavored. Experimental studies show that long linking chains with more than 5 members are required to prevent to steric interactions between the dicobalt hexacarbonyl moiety and the linking chain to allow the reaction to be kinetically favored. The final part of this work highlights progress towards the total synthesis of (+)-kingianin A. This natural product was isolated as a racemic mixture from the bark of Endiandra kingiana and is an inhibitor of antiapoptotic protein Bcl-Xl, highlighting its potential use in cancer treatments. Its structure is proposed to arise from an intermolecular Diels-Alder dimerization reaction of bicyclo[4.2.0]octadiene fragments derived from an 8 /6 -electrocyclization cascade. Although two total syntheses of (i )-kingianin A have been reported, an enantioselective synthesis has not been achieved and is the purpose of this study. This synthetic route begins from L-(+)-dimethyl tartrate, a cheap and commercially available starting material, and aims to follow a biomimetic synthetic pathway featuring a substrate controlled diastereoselective palladium(II)-catalyzed oxidative cyclization and 8 /6 -electrocyclization cascade. Although the feasibility of this cascade pathway has not yet been realized, key synthetic transformations to install the requisite carbocyclic framework of (+)-kingianin A have been discovered, paving the way for future investigations on the palladium(II)-catalyzed coupling/electrocyclization cascade and completion of the synthesis.
Book Synopsis Heterogeneous Catalysis and Fine Chemicals by : J. Barrault
Download or read book Heterogeneous Catalysis and Fine Chemicals written by J. Barrault and published by Elsevier. This book was released on 1988-08-01 with total page 435 pages. Available in PDF, EPUB and Kindle. Book excerpt: The recession in the traditional heavy industries along with the development of advanced technologies in all the industrial countries has meant that the impact of heterogeneous catalysis in the synthesis of fine chemicals is becoming increasingly noticeable. The first International Symposium on Heterogeneous Catalysis and Fine Chemicals is to be seen in this perspective. Organised by the Laboratory of Catalysis in Organic Chemistry of the University of Poitiers within the framework of the International Symposia of the `Centre National de la Recherche Scientifique' (CNRS), the symposium provided an opportunity for contact between academic researchers and manufacturers, users (or potential users) of solid catalysts for fine chemical synthesis.Two panels of industrial and academic researchers - one on selective hydrogenation, the other on selective synthesis of substituted aromatics - showed that heterogeneous catalysis already plays a significant role in fine organic chemistry. The main topics of the symposium were introduced in six plenary lectures and three invited communications, maintaining a balance between the industrial and the academic points of view. Some 60 research papers were submitted from which the Scientific Committee selected the 35 communications (oral or poster) which fitted most closely the theme of the symposium. All are reproduced in full in this Proceedings volume.