Anionic Annulations in Organic Synthesis

Anionic Annulations in Organic Synthesis PDF Author: Dipakranjan Mal
Publisher: Elsevier
ISBN: 0128138017
Category : Science
Languages : en
Pages : 464

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Book Description
Anionic Annulations in Organic Synthesis: A Versatile and Prolific Class of Ring-Forming Reactions is a comprehensive review of the best annulations for the construction of cyclic structures and their applications in the total synthesis of functional molecules. The reactions described in the work are particularly useful for the synthesis of polyoxygenated polycyclic compounds, including tetracyclines, angucyclines, uncialamycins, and lignans, among other compounds. Included in detail are the Hauser, Robinson, Sammes and Meyers annulations, all of which can be effectively used to construct substrates with complex molecular structures. This work provides the tools to master anionic organic chemistry, ortho-lithiation, lateral lithaition/metalation and organic selectivity issues, like chemoselectivity, regioselectivity and stereoselectivity. This book is a valuable resource for organic chemists, researchers and students seeking a complete and detailed understanding of anionic annulations. Provides a comprehensive review of anionic cyclization for chemical construction of a variety of cyclic scaffolds involved in many kinds of biologically active natural products and pharmaceutical drugs Serves as a useful tool to academic and industrial researchers working on the synthesis of cyclic compounds as their targets Includes many examples of anionic annulations and practical information on how to use them in research and industry Features anionic annulations that are particularly useful for the synthesis of polyoxygenated polycyclic compounds, including tetracyclines, angucyclines, uncialamycins and lignans

Anionic Annulations in Organic Synthesis

Anionic Annulations in Organic Synthesis PDF Author: Dipakranjan Mal
Publisher: Elsevier
ISBN: 0128138017
Category : Science
Languages : en
Pages : 464

Get Book Here

Book Description
Anionic Annulations in Organic Synthesis: A Versatile and Prolific Class of Ring-Forming Reactions is a comprehensive review of the best annulations for the construction of cyclic structures and their applications in the total synthesis of functional molecules. The reactions described in the work are particularly useful for the synthesis of polyoxygenated polycyclic compounds, including tetracyclines, angucyclines, uncialamycins, and lignans, among other compounds. Included in detail are the Hauser, Robinson, Sammes and Meyers annulations, all of which can be effectively used to construct substrates with complex molecular structures. This work provides the tools to master anionic organic chemistry, ortho-lithiation, lateral lithaition/metalation and organic selectivity issues, like chemoselectivity, regioselectivity and stereoselectivity. This book is a valuable resource for organic chemists, researchers and students seeking a complete and detailed understanding of anionic annulations. Provides a comprehensive review of anionic cyclization for chemical construction of a variety of cyclic scaffolds involved in many kinds of biologically active natural products and pharmaceutical drugs Serves as a useful tool to academic and industrial researchers working on the synthesis of cyclic compounds as their targets Includes many examples of anionic annulations and practical information on how to use them in research and industry Features anionic annulations that are particularly useful for the synthesis of polyoxygenated polycyclic compounds, including tetracyclines, angucyclines, uncialamycins and lignans

Organic Reactions, Volume 107

Organic Reactions, Volume 107 PDF Author:
Publisher: John Wiley & Sons
ISBN: 1119771285
Category : Science
Languages : en
Pages : 1172

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Book Description
The 107th volume in this series for organic chemists in academia and industry presents critical discussions of the following widely used organic reactions: ENANTIOSELECTIVE HYDROFORMYLATION Toshiki Tazawa, Andreas Phanopoulos, and Kyoko Nozaki HAUSER KRAUS, SAMMES, STAUNTON WEINREB, AND TAMURA ANNULATIONS Charles B. de Koning, Kathy Hadje Georgiou, Joseph P. Michael, and Amanda L. Rousseau

Lewis Base Catalysis in Organic Synthesis

Lewis Base Catalysis in Organic Synthesis PDF Author: Edwin Vedejs
Publisher: John Wiley & Sons
ISBN: 3527675175
Category : Science
Languages : en
Pages : 1488

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Book Description
This three-volume set represents the first comprehensive coverage of the rapidly expanding field of Lewis base catalysis that has attracted enormous attention in recent years. Lewis base catalysis is a conceptually novel paradigm that encompasses an extremely wide variety of preparatively useful transformations and is particularly effective for enantioselectively constructing new stereogenic centers. As electron-pair donors, Lewis bases can influence the rate and stereochemical course of myriad synthetic organic reactions. The book presents the conceptual/mechanistic principles that underlie Lewis base catalysis, and then builds upon that foundation with a thorough presentation of many different reaction types. And last but not least, the editors, Prof. Edwin Vedejs and Prof. Scott E. Denmark, are without doubt the leaders in this emerging field and have compiled high quality contributions from an impressive collection of international experts.

Lewis Base Catalysis in Organic Synthesis, 3 Volume Set

Lewis Base Catalysis in Organic Synthesis, 3 Volume Set PDF Author: Edwin Vedejs
Publisher: John Wiley & Sons
ISBN: 3527336184
Category : Science
Languages : en
Pages : 1476

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Book Description
This three-volume set represents the first comprehensive coverage of the rapidly expanding field of Lewis base catalysis that has attracted enormous attention in recent years. Lewis base catalysis is a conceptually novel paradigm that encompasses an extremely wide variety of preparatively useful transformations and is particularly effective for enantioselectively constructing new stereogenic centers. As electron-pair donors, Lewis bases can influence the rate and stereochemical course of myriad synthetic organic reactions. The book presents the conceptual/mechanistic principles that underlie Lewis base catalysis, and then builds upon that foundation with a thorough presentation of many different reaction types. And last but not least, the editors, Prof. Edwin Vedejs and Prof. Scott E. Denmark, are without doubt the leaders in this emerging field and have compiled high quality contributions from an impressive collection of international experts.

Organic Synthesis Using Transition Metals

Organic Synthesis Using Transition Metals PDF Author: Roderick Bates
Publisher: John Wiley & Sons
ISBN: 1119978947
Category : Science
Languages : en
Pages : 469

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Book Description
Transition metals open up new opportunities for synthesis, because their means of bonding and their reaction mechanisms differ from those of the elements of the s and p blocks. In the last two decades the subject has mushroomed - established reactions are seeing both technical improvements and increasing numbers of applications, and new reactions are being developed. The practicality of the subject is demonstrated by the large number of publications coming from the process development laboratories of pharmaceutical companies, and its importance is underlined by the fact that three Nobel prizes have been awarded for discoveries in this field in the 21st Century already. Organic Synthesis Using Transition Metals, 2nd Edition considers the ways in which transition metals, as catalysts and reagents, can be used in organic synthesis, both for pharmaceutical compounds and for natural products. It concentrates on the bond-forming reactions that set transition metal chemistry apart from "classical" organic chemistry. Each chapter is extensively referenced and provides a convenient point of entry to the research literature. Topics covered include: introduction to transition metals in organic synthesis coupling reactions C-H activation carbonylative coupling reactions alkene and alkyne insertion reactions electrophilic alkene and alkyne complexes reactions of alkyne complexes carbene complexes h3- or p-allyl -allyl complexes diene, dienyl and arene complexes cycloaddition and cycloisomerisation reactions For this second edition the text has been extensively revised and expanded to reflect the significant improvements and advances in the field since the first edition, as well as the large number of new transition metal-catalysed processes that have come to prominence in the last 10 years – for example the extraordinary progress in coupling reactions using “designer” ligands, catalysis using gold complexes, new opportunities arising from metathesis chemistry, and C-H activation – without neglecting the well established chemistry of metals such as palladium. Organic Synthesis Using Transition Metals, 2nd Edition will find a place on the bookshelves of advanced undergraduates and postgraduates working in organic synthesis, catalysis, medicinal chemistry and drug discovery. It is also useful for practising researchers who want to refresh and enhance their knowledge of the field.

Chiral Sulfinylallyl Anion in Asymmetric Organic Synthesis

Chiral Sulfinylallyl Anion in Asymmetric Organic Synthesis PDF Author: Gurudas D. Sinai- Zingde
Publisher:
ISBN:
Category : Carbanions
Languages : en
Pages : 292

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Book Description


Carbanions in Organic Synthesis

Carbanions in Organic Synthesis PDF Author: John Charles Stowell
Publisher: John Wiley & Sons
ISBN:
Category : Science
Languages : en
Pages : 276

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Book Description


Organic Reaction Mechanisms 2012

Organic Reaction Mechanisms 2012 PDF Author: A. C. Knipe
Publisher: John Wiley & Sons
ISBN: 1118930770
Category : Science
Languages : en
Pages : 658

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Book Description
Organic Reaction Mechanisms 2012, the 48th annual volume in this highly successful and unique series, surveys research on organic reaction mechanisms described in the available literature dated 2012. The following classes of organic reaction mechanisms are comprehensively reviewed: Reaction of Aldehydes and Ketones and their Derivatives Reactions of Carboxylic, Phosphoric, and Sulfonic Acids and their Derivatives Oxidation and Reduction Carbenes and Nitrenes Nucleophilic Aromatic Substitution Electrophilic Aromatic Substitution Carbocations Nucleophilic Aliphatic Substitution Carbanions and Electrophilic Aliphatic Substitution Elimination Reactions Polar Addition Reactions Cycloaddition Reactions Molecular Rearrangements An experienced team of authors compiled these reviews, ensuring the quality of selection and presentation.

Reagents for Silicon-Mediated Organic Synthesis

Reagents for Silicon-Mediated Organic Synthesis PDF Author: Philip L. Fuchs
Publisher: John Wiley & Sons
ISBN: 0470710233
Category : Technology & Engineering
Languages : en
Pages : 859

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Book Description
Over the last three decades the importance of organosilicon chemistry has greatly increased because it has opened a number of new synthetic strategies. Silicon reagents are usually low-cost, versatile and allow a wide range of reactions. This is the first Handbook to compile essential Silicon containing reagents and makes use of the leading reagent database e-EROS. Another hot volume in the series Handbooks of Reagents for Organic Synthesis, this is a must-have resource for all synthetic chemists working in drug development and medicinal chemistry. For the selection the Editor focussed on three key synthetic approaches with the greatest impact: 1. Use of silicon as a 'temporary tether' by unifying a reactive pair of functional groups and taking advantage of their template-biased intramolecular cyclization. 2. The specific use of the silane functionality as a hetero t-butyl group, often colloquially referred to as the use of silicon as a 'fat proton'. 3. The use of the Brook rearrangement as an 'anion relay stratagem'. A new feature in this Handbook is the reagent finder, an alphabetically organized lookup table arranged by organic functionality and specific structure of the silicon atom to which it is bound.

Essential Reagents for Organic Synthesis

Essential Reagents for Organic Synthesis PDF Author: Philip L. Fuchs
Publisher: John Wiley & Sons
ISBN: 1119279836
Category : Science
Languages : en
Pages : 640

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Book Description
From Boron Trifluoride to Zinc, the 52 most widely used reagents in organic synthesis are described in this unique desktop reference for every organic chemist. The list of reagents contains classics such as N-Bromosuccinimide (NBS) and Trifluoromethanesulfonic Acid side by side with recently developed ones like Pinacolborane and Tetra-n-propylammonium Perruthenate (TPAP). For each reagent, a concise article provides a brief description of all important reactions for which the reagent is being used, including yields and reaction conditions, an overview of the physical properties of the reagent, its storage conditions, safe handling, laboratory synthesis and purification methods. Advantages and disadvantages of the reagent compared to alternative synthesis methods are also discussed. Reagents have been hand-picked from among the 5000 reagents contained in EROS, the Encyclopedia of Reagents for Organic Synthesis. Every organic chemist should be familiar with these key reagents that can make almost every reaction work.