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Author : Alfred Schultz Schultz
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (72 download)
Download or read book A Synthesis of Oxindole Derivatives from Isatin written by Alfred Schultz Schultz and published by . This book was released on 1924 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. S. Ijaz
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (597 download)
Download or read book The Synthesis of Oxindole and Isatin Derivatives with Potential Radiosensizer Activity written by A. S. Ijaz and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dalpozzo Renato
Publisher : World Scientific
ISBN 13 : 1786347318
Total Pages : 320 pages
Book Rating : 4.7/5 (863 download)
Download or read book Asymmetric Synthesis Of 3, 3-disubstituted Oxindoles written by Dalpozzo Renato and published by World Scientific. This book was released on 2019-09-11 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Indole derivatives are the most common heterocycle compounds present in nature, for this reason, they have been referred to as 'privileged structures'. In fact, many approved drugs — and natural products — belong to this family. Among indole derivatives, oxindoles have a structural complexity, which have stimulated generations of synthetic chemists to design strategies for assembling these structures, and their enantioselective synthesis is still growing.This book proposes to describe the known enantioselective syntheses of oxindole derivatives. It is divided in six chapters each referring to a specific class of asymmetric oxindole derivatives. After the introduction, Chapter 2 describes all-carbon spirooxindoles; Chapter 3, open chain 3,3-dialkyloxindoles; Chapter 4, 3-substituted-3-aminooxindoles; Chapter 5, 3-substituted-3-hydroxyoxindoles; Chapter 6, 3-hetero-3-substituted oxindoles. It will be a useful tool for synthetic chemists, who assemble total synthesis of natural products, as well as for drug discovery chemists either in academic or in industry R&S laboratories.
Author : Kiran Gangarapu
Publisher : GRIN Verlag
ISBN 13 : 3656622728
Total Pages : 52 pages
Book Rating : 4.6/5 (566 download)
Download or read book Synthesis of new isatin derivatives for possible CNS activity written by Kiran Gangarapu and published by GRIN Verlag. This book was released on 2014-03-25 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Master's Thesis from the year 2013 in the subject Medicine - Pharmacology, Pharmacy, grade: 10, , course: M-Pharmacy, language: English, abstract: Isatin (1H-indole-2,3-dione) (I) was first discovered by Erdmann and Laurent in 1841, independently as a product from oxidation of indigo by nitric and chromic acids. It is a unique molecule possessing both amide and keto carbonyl groups. Apart from this, it has an active hydrogen atom attached to nitrogen (or oxygen) and an aromatic ring which was substituted at 5- and 7-positions. It exists in a tautomeric form (II) and these functional characteristics play an important role in governing the various reactions of the molecule. The C-3 carbonyl group of isatin is strongly electrophilic. As a result, isatins are readily involved in condensation and addition reactions with carbanion type nucleophiles into 3-substituted oxindoles. In general, there are three possibilities during condensation reactions. [...]
Author : Kyle James Knisley
Publisher :
ISBN 13 :
Total Pages : 212 pages
Book Rating : 4.:/5 (14 download)
Download or read book Libraries Form Libraries Approach to the Synthesis of Arylidene Oxindoles written by Kyle James Knisley and published by . This book was released on 2013 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: A libraries from libraries combinatorial chemistry approach was employed to synthesize fluorinated derivatives of both oxindoles and isatins as potential pharmaceuticals or targeting agents for imaging purposes related to cancer or Alzheimer's disease. Synthesis for these fluorinated derivatives are described by routes involving, either: a) N-alkylation of 5-substituted isatins followed by Wolff-Kishner reduction to the corresponding oxindoles and final Knoevenagel condensation with aryl aldehydes, or; b) Wolff-Kishner reduction of the isatins followed by condensation and finishing with the N-alkylation of the aldol products. In specific cases, a click reaction followed the N-alkylation of the aldol products to form the isatin 1,2,3-triazole which could be utilized to perform radiochemistry with a [18F]-radiolabel for the imaging of cancer. The strategy for the synthesis of such potential inhibitors was guided by SAR studies of peptide based inhibitors, as well as small-molecule inhibitors based upon the isatins scaffold. Previously, it was shown increasing functionality by adding 3 points of variability with the incorporation of an electron-withdrawing group such as a chlorine atom at the C-5 position allowed for increased potency of the oxindole derived inhibitors. Herein, a library of arylidene oxindoles was synthesized utilizing 3 points of variability with the incorporation of the electron-withdrawing group fluorine. Furthermore, a novel alternative synthesis was established for the creation of arylidene oxindoles which allowed for increased functionality through the incorporation of N-propargyl inhibitors. Finally, the ability to create N-propargyl compounds lead to the synthesis of isatin 1,2,3-triazoles was also explored for the possibility as potential imaging agents for cancer.
Author : Gordon W. Gribble
Publisher : John Wiley & Sons
ISBN 13 : 0470512180
Total Pages : 704 pages
Book Rating : 4.4/5 (75 download)
Download or read book Indole Ring Synthesis written by Gordon W. Gribble and published by John Wiley & Sons. This book was released on 2016-08-08 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: Of the myriad of heterocycles known to man, the indole ring stands foremost for its remarkably versatile chemistry, its enormous range of biological activities, and its ubiquity in the terrestrial and marine environments. The indole ring continues to be discovered in natural products and to be employed in man-made pharmaceuticals and other materials. Given the enormous resurgence in indole ring synthesis over the past decade — highlighted by the power of transition metal catalysis — this authoritative guide addresses the need for a comprehensive presentation of the myriad of methods for constructing the indole ring, from the ancient to the modern, and from the obscure to the well-known. Following presentation of the classic indole ring syntheses and many newer methods, coverage continues with indole ring syntheses via pyrroles, indolines, oxindoles, isatins, radical and photochemical reactions, aryne cycloadditions. This extensive volume concludes with the modern transition metal–catalyzed indole ring syntheses that utilize copper, palladium, rhodium, gold, ruthenium, platinum, and other metals to fashion the indole ring Indole Ring Synthesis is a comprehensive, authoritative and up-to-date guide to the synthesis of this important heterocycle for organic chemists, pharmaceutical researchers and those interested in the chemistry of natural products.
Author : William R. Conn
Publisher :
ISBN 13 :
Total Pages : 136 pages
Book Rating : 4.:/5 (587 download)
Download or read book A Synthesis and Study of Certain Oxindole and N-alkyl Oxindole Derivatives written by William R. Conn and published by . This book was released on 1936 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jitendra Patel
Publisher :
ISBN 13 : 9783659494659
Total Pages : 104 pages
Book Rating : 4.4/5 (946 download)
Download or read book Synthesis and Screening of Isatin Derivatives written by Jitendra Patel and published by . This book was released on 2015-04-09 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : George A Olah
Publisher : World Scientific
ISBN 13 : 9814498548
Total Pages : 1503 pages
Book Rating : 4.8/5 (144 download)
Download or read book Across Conventional Lines: Selected Papers Of George A Olah (In 2 Volumes) written by George A Olah and published by World Scientific. This book was released on 2003-01-29 with total page 1503 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the course of his distinguished career spanning about half a century, George A Olah, winner of the 1994 Nobel Prize for Chemistry, has been exceedingly prolific and has published more than 1000 scientific papers and 15 books and holds more than 100 patents. This invaluable volume contains about 250 papers selected for their breadth and current importance.
Author : Felix Braude
Publisher :
ISBN 13 :
Total Pages : 204 pages
Book Rating : 4.:/5 (586 download)
Download or read book The Synthesis of Certain Oxindole Derivatives written by Felix Braude and published by . This book was released on 1932 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Satya Prakash Gupta
Publisher : Academic Press
ISBN 13 : 0128096829
Total Pages : 518 pages
Book Rating : 4.1/5 (28 download)
Download or read book Viral Proteases and Their Inhibitors written by Satya Prakash Gupta and published by Academic Press. This book was released on 2017-07-03 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: Viral Proteases and Their Inhibitors provides a thorough examination of viral proteases from their molecular components, to therapeutic applications. As information on three dimensional structures and biological functions of these viral proteases become known, unexpected protein folds and unique mechanisms of proteolysis are realized. This book investigates how this facilitates the design and development of potent antiviral agents used against life-threatening viruses. Users will find descriptions of each virus that detail the structure and function of viral proteases, discuss the design and development of inhibitors, and analyze the structure-activity relationships of inhibitors. This book is ideal biochemists, virologists and those working on antiviral agents. Provides comprehensive, state-of-the-art coverage of virus infections, the virus lifecycle, and mechanisms of protease inhibition Analyzes structure-activity relationships of inhibitors of each viral protease Presents an in-depth view of the structure and function of viral proteases
Author : Albert Moyano
Publisher : Elsevier Inc. Chapters
ISBN 13 : 0128084693
Total Pages : 83 pages
Book Rating : 4.1/5 (28 download)
Download or read book Studies in Natural Products Chemistry written by Albert Moyano and published by Elsevier Inc. Chapters. This book was released on 2013-06-25 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt: Functional diversity and molecular architecture in biologically active oxindoles. Transition metal-catalyzed intramolecular Heck reactions and amide alpha-arylations. Asymmetric rearrangements of O-carbonylated oxindoles and related processes. Amination, hydroxylation, and halogenation reactions of 3-substituted oxindoles. Conjugate addition and alkylation reactions of 3-substituted oxindoles. Asymmetric aldol and Mannich reactions of isatins. Michael additions to isatin-derived electron-deficient alkynes. Nucleophilic substitution reactions of functionalized 3-substituted oxindoles. Enantioselective construction of spirooxindoles by cycloaddition, annulation, and cascade cyclization reactions of methyleneindolinone derivatives. The 3,3-disubstituted-2-oxindole moiety is present in many chiral alkaloids that exhibit interesting biological activities. The enantioselective synthesis of chiral oxindole derivatives has been mainly achieved by asymmetric catalytic methods. In this review we highlight the most important catalytic methods relevant to the synthesis of chiral, non-spirocyclic 3,3-disubstituted oxindoles.
Author : Alfred Hassner
Publisher : Elsevier
ISBN 13 : 1483287343
Total Pages : 462 pages
Book Rating : 4.4/5 (832 download)
Download or read book Organic Syntheses Based on Name Reactions and Unnamed Reactions written by Alfred Hassner and published by Elsevier. This book was released on 2013-10-22 with total page 462 pages. Available in PDF, EPUB and Kindle. Book excerpt: Synthetically useful organic reactions or reagents are often referred to by the name of the discoverer(s) or developer(s). Older name reactions are described in text books, but more recently developed synthetically useful reactions that may have been associated occasionally with a name are not always well known. For neither of the above are experimental procedures or references easy to find. In this monograph approximately 500 name reactions are included, of which over 200 represent newer name reactions and modern reagents. Each of these reactions are extremely useful for the contemporary organic chemistry researcher in industry or academic institutions. This book provides the information in an easily accessible form. In addition to seminal references and reviews, one or more examples for each name reaction are provided and a complete typical experimental procedure is included, to enable the student or researcher to immediately evaluate reaction conditions. Besides an alphabetical listing of reactions and reagents, cross references permit the organic practitioner to find those name reactions or reagents that enable specific transformations, such as, conversion of amines to nitriles, stereoselective reduction, fluoroalkylation, phenol alkynylation, asymmetric syntheses, allylic alkylation, nucleoside synthesis, cyclopentanation, hydrozirconation, to name a few. Emphasis has been placed on stereoselective and regioselective transformations as well as on enantioselective processes. The listing of reactions and reagents is supported by four indexes.
Author : Vishnu Ji Ram
Publisher : Elsevier
ISBN 13 : 0081011911
Total Pages : 504 pages
Book Rating : 4.0/5 (81 download)
Download or read book The Chemistry of Heterocycles written by Vishnu Ji Ram and published by Elsevier. This book was released on 2019-06-05 with total page 504 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterocycles are ubiquitously present in nature and occupy a unique place in organic chemistry as they are part of the DNA and haemoglobin that make life possible. The Chemistry of Heterocycles covers an introduction to the topic, followed by a chapter on the nomenclature of all classes of isolated, fused and polycyclic heterocycles. The third chapter delineates the highly strained three membered N,O and S containing aromatic and non-aromatic heterocycles with one and more than one similar and dissimilar heteroatom. The four-membered heterocycles are abundantly present in various natural and synthetic products of pharmacological importance. This chapter describes the natural abundance, synthesis, chemical reactivity, structural features and their medicinal importance. This class of compounds are present as sub-structures in penicillin and cytotoxic Taxol. Lastly, a chapter on the natural abundance, synthesis, chemical reactivity and pharmacological importance of 5-membered heterocycles with N,O,S heteroatom is covered. The chemistry of heterocycles with mixed heteroatom such as, N-S, N-O, N-S etc. is also described. - Gives in-depth, clear information about various systems of nomenclature along with widely acceptable IUPAC system for naming various classes of heterocycles - Provides complete information about natural occurrences, synthesis, chemical reactivity, pharmacological importance of heterocycles and their application in material science - Highly relevant for graduate students and researchers, providing updated information about various isolated and fused N,O and,S containing heterocycles
Author : Goutam Brahmachari
Publisher : Elsevier
ISBN 13 : 0128011386
Total Pages : 388 pages
Book Rating : 4.1/5 (28 download)
Download or read book Room Temperature Organic Synthesis written by Goutam Brahmachari and published by Elsevier. This book was released on 2015-03-19 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Filling a gap in the scientific literature, Room Temperature Organic Synthesis is unique in its authoritative, thorough, and applied coverage of a wide variety of "green" organic synthetic methodologies. The book describes practical, feasible protocols for room temperature reactions to produce carbon-carbon and carbon-heteroatom bond formations including aliphatic, aromatic, alicyclic, heterocycles, and more. Consistently organized for easy access, each selected reaction is discussed in a very compact and structured manner including: reaction type, reaction condition, reaction strategy, catalyst, keywords, general reaction scheme, mechanism (in selected cases), representative entries, experimental procedure, characterization data of representative entries, and references. This book will be a valuable resource for synthetic organic, natural products, medicinal, and biochemists as well as those working in the pharmaceutical and agrochemical industry. - Includes more than 300 protocols for a green approach to organic synthesis - Provides specific detail about experimental conditions - Increases efficiency in the laboratory by eliminating time-consuming literature searches
Author : Ramon Rios Torres
Publisher : John Wiley & Sons
ISBN 13 : 1119567637
Total Pages : 468 pages
Book Rating : 4.1/5 (195 download)
Download or read book Spiro Compounds written by Ramon Rios Torres and published by John Wiley & Sons. This book was released on 2022-03-02 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt: SPIRO COMPOUNDS A comprehensive treatment of the latest research in, and applications of, spiro compounds Spiro Compounds: Synthesis and Applications combines discussions of the latest advances in spiro compound research with the most cutting-edge, real-world applications of that knowledge. This book provides in-depth coverage of the history, significance, properties, synthetic methods, and applications of spiro compounds. As interest in spiro compounds grows due to their unique conformational features and their structural implications on biological systems, Spiro Compounds delivers fulsome treatments of advances in spiro compound synthesis (including stereoselective synthesis) methodologies. With a special focus on the mechanisms of the reactions that lead to the synthesis of spiro compounds, chapters in the book cover topics such as: The history, significance, and unique properties of spiro compounds The most important methodologies for their synthesis The applications of spiro compounds in organic chemistry, biology, drug discovery The most important syntheses of natural products bearing a spiro ring Perfect for academic and industrial chemists, this comprehensive discussion of spirocycles is an indispensable resource for those practicing in the field.
Author : Milind Rajopadhye
Publisher :
ISBN 13 :
Total Pages : 376 pages
Book Rating : 4.:/5 (174 download)
Download or read book The Chemistry of Isatin and Isatin Derivatives written by Milind Rajopadhye and published by . This book was released on 1986 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
