Efforts Towards the Total Synthesis of Vinigrol, Stereoselective Synthesis of Carbocycles and Gold-catalyzed Benzannulation PDF Download
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Author: Christiane Grisé-Bard
Publisher:
ISBN:
Category : University of Ottawa theses
Languages : en
Pages : 856
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Author: Christiane Grisé-Bard
Publisher:
ISBN:
Category : University of Ottawa theses
Languages : en
Pages : 856
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Book Description
Author: Christiane Grisé-Bard
Publisher:
ISBN:
Category : Diels-Alder reaction
Languages : en
Pages : 0
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Author: Miguel A. Sierra
Publisher: John Wiley & Sons
ISBN: 352765464X
Category : Science
Languages : en
Pages : 297
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Book Description
Success comes in many forms and in synthesis it can be a failure that results in their ultimate successful solutions. This long-awaited sequel to "Dead Ends and Detours" retains the proven concept while featuring over 20 new case studies of failed strategies and their (successful) solutions in natural product total synthesis. Additionally, computational models are used to discuss the problem in much more detail and to provide readers with additional information not found in the primary literature. The topics range from classic synthetic reactions (e.g. Diels Alder reaction), metal-mediated coupling reactions, metathesis, and asymmetric catalysis to the importance of protecting and activating groups. This book will benefit not only graduate students in organic chemistry but also advanced researchers as they gain knowledge derived from the step-by-step analysis of mistakes made in the past and, thus be able to improve their own chemical reaction planning. With its coverage of the most commonly applied reaction types, the book perfectly complements its predecessor, which focuses on general aspects, such as reactivity and selectivity.
Author: Erick M. Carreira
Publisher: John Wiley & Sons
ISBN: 9783527324521
Category : Science
Languages : en
Pages : 664
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Book Description
Die wichtigsten und nützlichsten Methoden der modernen stereoselektiven Synthese sind in diesem Band zusammengefasst. Viele anschauliche Beispiele für die Darstellung von Wirkstoffen und Naturstoffen regen zur gezielten Abwandlung und Integration in eigene Synthesewege an. Dabei geht es den Autoren weniger darum, das Gebiet in seiner Gesamtheit darzustellen; vielmehr versuchen sie, die wirklich grundlegenden Ansätze auszuwählen, die jeder organische Synthesechemiker kennen und anwenden sollte.
Author: A. Stephen K. Hashmi
Publisher: John Wiley & Sons
ISBN: 3527319522
Category : Science
Languages : en
Pages : 419
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Book Description
With its impressive features, gold has led to completely new reaction types in recent years, which in turn have strongly influenced both organic catalysis and material science. Other fields where a significant amount of new results has been obtained include nanotechnology, self assembly/supramolecular systems and biochemical/medicinal chemistry. As a result, gold is one of the hottest topics in catalysis at the moment, with an increasing amount of research being carried out in this field. While focusing on homogeneous catalysis, this monograph also covers the main applications in heterogeneous catalysis. Following a look at the gold-catalyzed addition of heteroatom nucleophiles to alkynes, it goes on to discuss gold-catalyzed additions to allenes and alkenes, gold-catalyzed benzannulations, cycloisomerization and rearrangement reactions, as well as oxidation and reduction reactions. The whole is finished off with a section on gold-catalyzed aldol and related reactions and the application of gold-catalyzed reactions to natural product synthesis. Of interest to synthetic chemists and inorganic chemists, as well as organic chemists working in homogeneous catalysis, physical and technical chemists.
Author: S. Thavaselvan
Publisher:
ISBN: 9781805292470
Category :
Languages : en
Pages : 0
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Book Description
S. Thavaselvan is a renowned scientist in the field of organic chemistry, particularly in the area of synthesizing annulated carbocycles and heterocycles. In this area of research, he has made significant contributions to the development of new methodologies for the synthesis of complex molecules with diverse biological activities. Synthesis of annulated carbocycles and heterocycles is a challenging task due to the presence of multiple functional groups and the complexity of the reaction pathways involved. However, with the development of new methods and strategies, this area of research has seen rapid growth in recent years. Cyclization reactions, which involve the formation of a ring from a linear precursor, are the most common methods used for the synthesis of annulated carbocycles and heterocycles. These reactions can be catalyzed by a variety of transition metals such as palladium, rhodium, ruthenium, nickel, copper, and iron. The choice of metal catalyst and ligand can significantly influence the outcome of the reaction, particularly with respect to stereoselectivity and regioselectivity. Chiral ligands are used to achieve asymmetric synthesis of annulated carbocycles and heterocycles, while non-chiral ligands are used for stereoselective synthesis. Aromatic and aliphatic compounds can be used as starting materials for the synthesis of these complex molecules, and a range of functional groups including nitrogen, oxygen, and sulfur can be incorporated into the final product. The synthesis of annulated carbocycles and heterocycles can also involve nucleophilic substitution, electrophilic substitution, cross-coupling reactions, ring opening reactions, rearrangement, reduction, and oxidation. Grignard reagents, Sonogashira reaction, Suzuki reaction, and Heck reaction are some of the most commonly used reactions for the synthesis of these compounds. Heteroaromatic compounds such as pyridine, indole, quinoline, pyrimidine, pyrazine, benzofuran, benzothiophene, benzimidazole, isoquinoline, and pyrrole are commonly used as building blocks for the synthesis of annulated carbocycles and heterocycles due to their diverse biological activities. In conclusion, S. Thavaselvan's research in the area of synthesizing annulated carbocycles and heterocycles has contributed significantly to the development of new methodologies for the synthesis of complex molecules with diverse biological activities. The use of different metal catalysts, ligands, and functional groups has enabled the development of efficient and selective synthetic methods for the preparation of these complex molecules.
Author: Jason Poulin
Publisher:
ISBN: 9780494979006
Category :
Languages : en
Pages :
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Author: Jianbo Wang
Publisher: Springer
ISBN: 9783642433580
Category : Science
Languages : en
Pages : 0
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Stereoselective Synthesis of Tetrasubstituted Alkenes via Torquoselectivity-Controlled Olefination of Carbonyl Compounds with Ynolates, by Mitsuru Shindo and Kenji Matsumoto.- Stereoselective Synthesis of Z-Alkenes, by Woon-Yew Siau, Yao Zhang and Yu Zhao.- Stereoselective Synthesis of Mono-fluoroalkenes, by Shoji Hara.- Recent Advances in Stereoselective Synthesis of 1,3-Dienes, by Michael De Paolis, Isabelle Chataigner and Jacques Maddaluno.- Selective Olefination of Carbonyl Compounds via Metal-Catalyzed Carbene Transfer from Diazo Reagents, by Yang Hu and X. Peter Zhang.- Selective Alkene Metathesis in the Total Synthesis of Complex Natural Product, by Xiaoguang Lei and Houhua Li.- Olefination Reactions of Phosphorus-Stabilized Carbon Nucleophiles, by Yonghong Gu and Shi-Kai Tian.- Alkene Synthesis Through Transition Metal-Catalyzed Cross-Coupling of N-Tosylhydrazones, by Yan Zhang and Jianbo Wang.
Author: Francis Barabe
Publisher:
ISBN:
Category : University of Ottawa theses
Languages : en
Pages :
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Author: Nicolas Delpont
Publisher:
ISBN:
Category :
Languages : en
Pages : 276
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