5-Membered Heterocycle Synthesis Using Iodine presents both old and new methods for the synthesis of various five-membered heterocycles using iodine, providing information for making specific compounds using particular reagents. Heterocyclic frameworks represent the main structural subunits of many biologically active compounds and natural products, and the ability of heterocycles to act both as reactive pharmacophores and biomimetics has greatly contributed to their unique value as traditional key elements of various drugs. Contemporary developments in process chemistry and discovery emphasize novel sustainable synthetic pathways as fast and ecologically acceptable alternatives to the traditional protocols. This book serves as a guide for students, pharmacologists, biochemists, organic and medicinal chemists, researchers, and academic professionals to obtain easy access to synthetic protocols for different five-membered heterocycles using iodine. - Covers the applications of five-membered heterocycles - Highlights methodologies for the synthesis of five-membered heterocycles using iodine - Contains the most up-to-date information in this fast-moving field

Synthesis of Five-Membered Heterocycles: Role of DMF as Solvent, Reagent, Catalyst, and Stabilizer helps readers quickly assess possible synthetic approaches. The book's audience, researchers, academic professionals and synthetic chemists both in industry and academia will find detailed information about the synthesis of five-membered heterocyclic compounds using dimethylformamide. Over the years, heterocyclic compounds, especially five-membered, have drawn more attention of pharmaceutical community because of their therapeutic value. The formation of heterocyclic compounds has turned out to be the keystone of synthetic organic chemistry. Dimethylformamide has played an important role in organic synthesis for a long time, and it is frequently utilized as a common solvent for chemical reactions and broadly used in industry as a reagent. It is a unique chemical and can play three other roles in organic chemistry, i.e., as stabilizer, reagent and catalyst. Due to its structure, DMF can participate in several reactions as a versatile building block for several units. - Includes comprehensive descriptions of heterocycle synthesis - Highlights many methods for the synthesis of five-membered heterocyclic compounds using dimethylformamide - Helps readers quickly assess possible synthetic approaches

3-membered heterocyclic rings offer an unusual combination of synthetic flexibility, reactivity, and atom economy. The main challenge for synthetic chemists, both in academia and industry, is the search for efficient approaches to target molecules. This book presents several methodologies for the synthesis of three-membered heterocyclic compounds and the readers will defiantly gain knowledge about the topic. With Three-Membered Heterocycle Synthesis, readers have detailed information about the synthesis of three-membered heterocyclic compounds. It comprehensively describes three-membered heterocyclic compounds synthesis, allowing the audience to quickly assess possible synthetic approaches. - Covers the applications of three-membered heterocycles - Includes comprehensive descriptions of heterocycle synthesis - Highlights methodologies for the synthesis of three-membered heterocycles - Analyzes several types and families of compounds, with a large set of recent examples in the field

Four-Membered Heterocycle Synthesis offers a comprehensive approach to these unstable organic compounds, providing a systematic introduction to the synthesis and reactions of all common four-membered heterocycles and illustrating different methods to prepare specific four-membered heterocycles. Four-membered heterocyclic compounds are known as a class of unstable organic compounds because of their strain characteristics, which make them very beneficial as precursors for the formation of a broad range of complex heterocyclic molecules and for synthetic elaboration. - Provides a systematic introduction to the synthesis and reactions of all common four-membered heterocycles - Highlights different methods to prepare specific 4-membered heterocycles - Analyzes several types and families of compounds, with a large set of recent examples in the field

Green Synthetic Approaches for Biologically Relevant Heterocycles, Second Edition, Volume One: Advanced Synthetic Techniques reviews this significant group of organic compounds within the context of sustainable methods and processes, expanding on the first edition with fully updated coverage and a whole range of new chapters. Volume One explores advanced synthetic techniques, with each chapter presenting in-depth coverage of various green protocols for the synthesis of a wide variety of bioactive heterocycles that are classified on the basis of ring-size and/or the presence of heteroatoms. Techniques covered range from high pressure cycloaddition reactions and microwave irradiation to sustainable one-pot domino reactions. This updated edition is an essential resource on sustainable approaches for academic researchers, R&D professionals, and students working across medicinal, organic, natural product and green chemistry. Provides fully updated coverage of the field of greener heterocycle synthesis Includes new chapters on varied multicomponent reactions, alongside both traditional and novel approaches Presents information in an accessible style with an emphasis on sustainability

T. Wirth: Introduction and General Aspects.- M. Ochiai: Reactivities, Properties and Structures.- A. Varvoglis: Preparation of Hypervalent Iodine Compounds.- V.V. Zhdankin: C-C-Bond Forming Reactions.- G.F. Koser: C- Heteroatom-Bond Forming Reactions.- G.F. Koser: Heteroatom- Heteroatom-Bond Forming Reactions.- T. Wirth: Oxidations and Rearrangements.- H. Tohma, Y. Kita: Synthetic Applications (Total Synthesis and Natural Product Synthesis).

Synthesis of Six- and Seven-Membered Heterocycles: The Role of DMF and its Synthesis compares different synthetic approaches using DMF, including the advantages and disadvantages of those reactions, green methods, and the sustainability of reported synthetic methodologies, especially the microwave methods. The book presents several methodologies for the synthesis of six- and seven-membered heterocyclic compounds using dimethylformamide. Users will find the most up-to-date information in this fast-moving field which can be particularly challenging. With DMF drawing the attention of synthetic organic chemists, this book will help readers understand further developments in the uses of dimethylformamide beyond just its use as a polar solvent. As it can be expected that the use of dimethylformamide as a precursor will continue to grow in organic synthesis with new applications in sustainable and green chemistry, this book provides an ideal primer on the topics covered. - Compares different methods, reagents, reaction conditions, advantages and disadvantages - Discusses and compares different methodologies with green techniques - Includes reaction schemes, reaction mechanisms and the structure of reactive intermediates

Iodine-Assisted Synthesis of Six- and Seven-Membered Heterocycles covers both existing and the latest methods for the synthesis of various six- and seven-membered heterocycles using iodine. Covering an important and rapidly growing branch of heterocyclic chemistry, this book allows users easy access to the synthetic protocols for the synthesis of heterocycles, acting as a guide for how to make these important compounds employed as agrochemicals, pharmaceuticals, and veterinary products, using particular reagents. This book will be of interest to students, pharmacologists, biochemists, and organic and medicinal chemists. - Covers different methodologies for the synthesis of six- and seven-membered heterocycles using iodine - Includes the applications of six- and seven-membered heterocycles - Includes reactions schemes, mechanisms, and illustrations of the structure of reactive intermediates

The smallest possible saturated azaheterocycle, aziridine, is well-known to organic chemists for its tremendous potential in pharmaceutical chemistry and organic synthesis. The general biological importance of aziridines is proven by the fact that they found several uses as subunits in pharmacologically active compounds such as antitumor agents, enzyme inhibitors, and antibiotics. Although aziridines are highly reactive, this framework occurs in many synthetic compounds and the natural products of biological interest also contain aziridine skeleton in their structures. The synthetic community is captivated with prospects of selective synthesis and conversions of aziridines. Several important advances in this area have been witnessed in recent years and discovering efficient novel methods for the synthesis of aziridines has been very active field of research. Its powerful synthetic utility has been described by an overpowering amount of documentation on the approaches for the formation of aziridine. Synthesis of Aziridines and Oxaziridines from Imines describes the new and old methods for the synthesis of aziridines from imines and covers an important and rapidly growing branch of heterocyclic chemistry. Readers will have access to different methods and information allowing them to evaluate which method is most suitable for particular cases. - Focuses on the biological importance of different heterocycles - Describes traditional and innovative methods for the synthesis of aziridines from imines - Includes comparison amongst different methods, reagents, reaction conditions in tabulated forms, advantages, disadvantages, and critical analysis of different methodologies with respect to their comparison with green technique

Oxetane Synthesis rings play an important role as versatile motifs both in the overall formation of natural products and in synthetic organic chemistry. Oxetanes are important motifs in pharmaceutical chemistry that can confer improved metabolic and physicochemical properties. These developments continue to enhance the use of oxetanes in medicinal chemistry. Thanks to the growing commercial accessibility of oxetane possessing building blocks, together with improved approaches for the formation, oxetanes are likely to be progressively utilized in medicinal chemistry programs. Oxetanes are becoming valuable as a result of their vast diversity of uses in medicinal chemistry and varying applications. Several procedures have been developed for the formation and ring-opening of oxetanes to give important compounds in agrochemical, medicinal and material sciences. Novel approaches have been developed for the synthesis of oxetanes. These methods depend on both established synthetic approaches and development of many novel approaches for the formation of oxetanes. - Highlights methods for the synthesis of oxetanes - Includes new developments that enhance the use of oxetanes in medicinal chemistry - Covers new approaches recently developed for the synthesis of oxetanes