Strategies and Tactics in Organic Synthesis


Book Description

Strategies and Tactics in Organic Synthesis, Volume 3 provides detailed accounts of interesting advances in the field of synthesis. This book discusses the tasks of multistep synthesis from finding the proper reagents, reaction, and conditions for individual steps to inventing new chemistry to fill gaps in existing synthetic methodology. Organized into 13 chapters, this volume begins with an overview of the development of redox glycosidation strategy through ester methylenation. This text then examines the development of computer-assisted molecular modeling with applications to a wide range of problems in biological and organic chemistry. Other chapters consider the medicinal significance of ginkgo tree, which has prompted systematic studies to correlate the claimed beneficial effects of its extracts to the active principles. This book discusses as well the biological potency of pentacyclic quassinoids. The final chapter deals with the economic synthesis of a penem antibacterial. This book is a valuable resource for chemists.




Design and Strategy in Organic Synthesis


Book Description

This long-awaited graduate level book, written by one of the world's leading organic chemists in collaboration with two of his former and present coworkers, adopts a refreshingly unique approach to synthesis planning and execution. Following an introductory look at the concept of synthesis, the authors discuss the Why, What, and How of organic synthesis as they apply to natural products. Although emphasis is on the Chiron Approach utilizing amino-acids, carbohydrates, hydroxy acids, terpenes, lactones and other naturally occurring small molecules as starting materials, catalytic asymmetric methods are also included as a corollary whenever relevant. A must-have source of first class information for everyone working in organic synthesis, be it in academia or industry. With a foreword by Larry E. Overman and David W. C. MacMillan




Organic Chemistry in Action


Book Description

Contrary to all other books in the field of organic synthesis, this volume combines Corey's methodology, which is based on the concept of synthon and retrosynthetic analysis, with Evans' methodology based on the `Lapworth model' of alternating polarities. Using this approach, the formation of carbon-carbon bonds and the manipulation of functional groups are treated together, whereas the stereochemical aspects are considered separately. Emphasis is laid on the importance of rigid structures, whether in the starting materials, the synthetic intermediates or the transition states, as a means of controlling the stereochemistry of the organic compounds. Enclosed with the book is a copy of a miniprogram (CHAOS) for an IBM PC, or fully compatible computers, which is an interactive program, affording the beginner a fast and easy way of learning, exploring and looking for new synthetic schemes of molecules of moderate complexity. As a textbook on organic synthesis, this volume will be of immense value at university level.




Design and Optimization in Organic Synthesis


Book Description

This is the first general textbook on experimental design and optimization in organic synthesis. The book presents a unified methodology for carrying out systematic studies when the objective is to develop efficient and optimum synthetic methods. Strategies are included both for exploring the experimental conditions and for systematic studies of entire reaction systems (substrates, reagent(s) and solvents). The methodology is based on multivariate statistical techniques. The following topics are treated in depth: classical two-level designs for screening experiments, gradient methods (steepest ascent, simplex methods) as well as response surface techniques for optimization, principal components analysis and PLS modelling. The book is intended as a hands-on text for chemists and engineers engaged in developing synthetic methods in industrial research, e.g. in fine chemicals and pharmaceuticals production, as well as for advanced undergraduate students, graduate students, and researchers in an academic environment.




Design and Optimization in Organic Synthesis


Book Description

Revised, and updated Design and Optimization in Organic Synthesis presents strategies to explore experimental conditions and methodologies for systematic studies of entire reaction systems (substrates, reagent(s), catalyst(s), and solvents). Chemical phenomena are not usually the result of a single factor and this book describes how statistically designed methods can be used to analyse and evaluate synthetic procedures. The methodology is based on multivariate statistical techniques. The accompanying CD contains data tables and programmes. This book is essential reading for anyone working in process design and development in fine chemicals or the pharmaceutical industry, and is suitable for those with no experience in the field. * Contains recalculated models and redrawn figures, as well as new chapters on for example, the design of combinatorial libraries * Presents strategies to explore experimental conditions and methodologies * Enables the analysis and prediction of the best synthetic procedures




Design and Strategy in Organic Synthesis


Book Description

Following an introductory look at the concept of synthesis, this text goes on to discuss sources of enantiomerically pure compounds, the Chiron approach, locating the various substructures, synthesis with the various precursors and computer-aided synthesis--




Strategies and Tactics in Organic Synthesis


Book Description

This chapter defines risk-taking in organic synthesis as the deliberate pursuit of strategies that do not have near neighbors in the chemical literature. In these ventures into the unknown, chemical behavior can be difficult to predict. The literature of organic chemistry is replete with examples of powerful, bond-forming strategies that had little or no precedent when they were developed. This essay addresses some of those examples in an effort to demonstrate the merits of creative risk-taking in the planning and execution of organic syntheses.




Introduction to Strategies for Organic Synthesis


Book Description

The stepping-stone text for students with a preliminary knowledge of organic chemistry looking to move into organic synthesis research and graduate-level coursework Organic synthesis is an advanced but important field of organic chemistry, however resources for advanced undergraduates and graduate students moving from introductory organic chemistry courses to organic synthesis research are scarce. Introduction to Strategies for Organic Synthesis is designed to fill this void, teaching practical skills for making logical retrosynthetic disconnections, while reviewing basic organic transformations, reactions, and reactivities. Divided into seven parts that include sections on Retrosynthesis and Protective Groups; Overview of Organic Transformations; Synthesis of Monofunctional Target Molecules; Synthesis of Target Molecules with Two Functional Groups; Synthesis of Aromatic Target Molecules; Synthesis of Compounds Containing Rings; and Predicting and Controlling Stereochemistry, the book covers everything students need to successfully perform retrosynthetic analyses of target molecule synthesis. Starting with a review of functional group transformations, reagents, and reaction mechanisms, the book demonstrates how to plan a synthesis, explaining functional group analysis and strategic disconnections. Incorporating a review of the organic reactions covered, it also demonstrates each reaction from a synthetic chemist's point of view, to provide students with a clearer understanding of how retrosynthetic disconnections are made. Including detailed solutions to over 300 problems, worked-through examples and end-of-chapter comprehension problems, Introduction to Strategies for Organic Synthesis serves as a stepping stone for students with an introductory knowledge of organic chemistry looking to progress to more advanced synthetic concepts and methodologies.




Solid-Phase Organic Synthesis


Book Description

Presents both the fundamental concepts and the most recent applications in solid-phase organic synthesis With its emphasis on basic concepts, Solid-Phase Organic Synthesis guides readers through all the steps needed to design and perform successful solid-phase organic syntheses. The authors focus on the fundamentals of heterogeneous supports in the synthesis of organic molecules, explaining the use of a solid material to facilitate organic synthesis. This comprehensive text not only presents the fundamentals, but also reviews the most recent research findings and applications, offering readers everything needed to conduct their own state-of-the-art science experiments. Featuring chapters written by leading researchers in the field, Solid-Phase Organic Synthesis is divided into two parts: Part One, Concepts and Strategies, discusses the linker groups used to attach the synthesis substrate to the solid support, colorimetric tests to identify the presence of functional groups, combinatorial synthesis, and diversity-oriented synthesis. Readers will discover how solid-phase synthesis is currently used to facilitate the discovery of new molecular functionality. The final chapter discusses how using a support can change or increase reaction selectivity. Part Two, Applications, presents examples of the solid-phase synthesis of various classes of organic molecules. Chapters explore general asymmetric synthesis on a support, strategies for heterocyclic synthesis, and synthesis of radioactive organic molecules, dyes, dendrimers, and oligosaccharides. Each chapter ends with a set of conclusions that underscore the key concepts and methods. References in each chapter enable readers to investigate any topic in greater depth. With its presentation of basic concepts as well as recent findings and applications, Solid-Phase Organic Synthesis is the ideal starting point for students and researchers in organic, medicinal, and combinatorial chemistry who want to take full advantage of current solid-phase synthesis techniques.




Strategies and Tactics In Organic Synthesis


Book Description

Strategies and Tactics in Organic Synthesis presents the chronological development of ideas and experimentation in organic synthesis. This book is organized into 13 chapters that explore the synthetic pathways of various organic compounds. The first four chapters describe the variations in the synthesis of superphane, gibberellic acid, prostaglandin, and alkaloids. The following chapters cover the organic synthesis and biosynthesis of tylonolide, endiandric acids A-G, dodecahedrane, fomannosin, and illudol. A chapter focuses on the evolution of the total synthesis of jatrophone, an architecturally interesting macrocyclic diterpene extracted from Jatropha gossypiifolia. Another chapter discusses the heuristic principle for the stereorationale design of alkaloid syntheses. The remaining chapters discuss the approach to the total synthesis of steroids, streptonigrin, methynolide, and Prelog-Djerassi lactonic acid. Organic chemists, teachers, and students will find this book of great value.