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Author: Francesco Fringuelli
Publisher: John Wiley & Sons
ISBN: 9780471803430
Category : Science
Languages : en
Pages : 364
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Book Description
70 Jahre Forschung an der Diels-Alder-Reaktion: Dieses Buch fasst die wichtigsten und beeindruckendsten Ergebnisse in einzigartiger Weise zusammen! Zunächst werden die Grundprinzipien der Reaktion klar und verständlich anhand übersichtlicher Graphiken erläutert. Spezielle Vorschriften und gegebenenfalls ihre industrielle Umsetzung werden anschließend erklärt. Einen Schwerpunkt bilden auch physikalische und katalytische Verfahren zur Steigerung der Selektivität der Reaktion. Cycloadditionen in konventionellen und unkonventionellen Medien werden vorgestellt. Mit über 1.000 Literaturverweisen!
Author: Francesco Fringuelli
Publisher: John Wiley & Sons
ISBN: 9780471803430
Category : Science
Languages : en
Pages : 364
Get Book Here
Book Description
70 Jahre Forschung an der Diels-Alder-Reaktion: Dieses Buch fasst die wichtigsten und beeindruckendsten Ergebnisse in einzigartiger Weise zusammen! Zunächst werden die Grundprinzipien der Reaktion klar und verständlich anhand übersichtlicher Graphiken erläutert. Spezielle Vorschriften und gegebenenfalls ihre industrielle Umsetzung werden anschließend erklärt. Einen Schwerpunkt bilden auch physikalische und katalytische Verfahren zur Steigerung der Selektivität der Reaktion. Cycloadditionen in konventionellen und unkonventionellen Medien werden vorgestellt. Mit über 1.000 Literaturverweisen!
Author: Leah Brigit Cleary
Publisher:
ISBN: 9781303305948
Category :
Languages : en
Pages : 579
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Book Description
This thesis documents progress on five distinct projects pertaining to advancing methodologies and the synthetic utility of the Diels-Alder reaction. The first methodical study used a microwave reactor as convenient and safe heating source to induce the type 2 intramolecular Diels-Alder reaction. The second methodology involves the synthesis and study of bis-borane Lewis acids as chiral catalysts of intermolecular Diels-Alder reactions and ionic Diels-Alder reactions. A computational study to determine the origins in regio- and diastereoselectivity of the N-acylnitroso type 2 intramolecular Diels-Alder reaction accompanies our synthetic efforts toward the total synthesis of the Stemona alkaloid, ( - )-stenine. Finally, progress toward the total synthesis of the welwitindolinone alkaloids, N-methyl welwitindolinone C isothiocyanate and N-methyl welwitindolinone B isothiocyanate, is reported.
Author: Rui-Bin Wang
Publisher:
ISBN:
Category : Allyl compounds
Languages : en
Pages : 386
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Book Description
Author: Antje Maria Teichert
Publisher: Cuvillier Verlag
ISBN: 3867274452
Category :
Languages : en
Pages : 225
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Book Description
Author: Catharine Grossmith-Hague
Publisher:
ISBN:
Category :
Languages : en
Pages : 0
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Book Description
Author: Alessandro Mordini
Publisher: Springer Science & Business Media
ISBN: 1402067933
Category : Science
Languages : en
Pages : 339
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Book Description
Chemical industries have to face the challenge of finding adequate processes to produce large quantities of new products, while at the same time decreasing both the impact on the environment and the risk of disaster. This book addresses this challenge. It discusses the problems of environmentally benign organic processes on an interdisciplinary approach. The book features experts in selective catalysis, development of new reagents and methods who present their recent results.
Author: Marx Ruiz-Wilson
Publisher:
ISBN:
Category :
Languages : en
Pages :
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Book Description
"Despite the recent advances in catalytic organic transformations, we believe the discovery of novel and more advantageous catalytic systems would bring insights to our understanding of the reactivity and mechanistic aspects of known processes. Our particular interest in the Diels-Alder reaction and the anionic oxy-Cope rearrangements, and our efforts in the investigations towards the development of new methods of catalysis are detailed in this thesis.Our efforts focus on the utilization of Lewis acid/base mediated method for the activation of the Diels-Alder reaction. Although the initial synthetic approach of the model substrates has proven to be challenging, we have circumvented those difficulties by designing different substrates with the similar reactivity. The results obtained with the revised substrates suggest that activation of the diene by addition of electron releasing species has a positive effect in the rate of the cycloaddition.In our studies towards a hydride-free methodology for the catalysis of the anionic oxy-Cope rearrangement, we have shown the use of stoichiometric amounts of Bu4NOH was able to accelerate the transformation. The observed results suggest that the rate of the reaction can also be increased with excess hydroxide in DMSO at 80°C. The use of tetraalkylammonium bases under milder conditions has proven to be ineffective to accelerate the sigmatropic rearrangement." --
Author: Sijbren Otto
Publisher:
ISBN: 9789036709309
Category :
Languages : en
Pages : 186
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Book Description
Author: Michelangelo Gruttadauria
Publisher: John Wiley & Sons
ISBN: 1118087984
Category : Science
Languages : en
Pages : 721
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Book Description
This book covers advances in the methods of catalytic asymmetric synthesis and their applications. Coverage moves from new materials and technologies to homogeneous metal-free catalysts and homogeneous metal catalysts. The applications of several methodologies for the synthesis of biologically active molecules are discussed. Part I addresses recent advances in new materials and technologies such as supported catalysts, supports, self-supported catalysts, chiral ionic liquids, supercritical fluids, flow reactors and microwaves related to asymmetric catalysis. Part II covers advances and milestones in organocatalytic, enzymatic and metal-based mediated asymmetric synthesis, including applications for the synthesis of biologically active molecules. Written by leading international experts, this book consists of 16 chapters with 2000 References and illustrations of 560 schemes and figures.
Author: Emma S. Anderson
Publisher:
ISBN:
Category :
Languages : en
Pages :
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