Download or read book Preparation and Synthetic Transformations of Benzotriazole Derivatives written by Craig V. Hughes and published by . This book was released on 1989 with total page 168 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Chemistry of Benzotriazole Derivatives written by Jean-Christophe M. Monbaliu and published by Springer. This book was released on 2016-05-12 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field. All chapters from Topics in Heterocyclic Chemistry are published Online First with an individual DOI. In references, Topics in Heterocyclic Chemistry is abbreviated as Top Heterocycl Chem and cited as a journal.

Download or read book Synthesis and Antimicrobial Activity of Benzotriazole Derivatives written by Vijay Kumar Singh and published by LAP Lambert Academic Publishing. This book was released on 2012-04 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt: The practice of medicinal chemistry is devoted to the discovery and development of new chemical agents for treating disease. Most of the activity in this discipline is directed to the search of new natural or synthetic organic compounds. The present work emphasizes the synthesis of novel derivatives of benzotriazolothiadiazolyl thiazolidinones having three nuclei in combination with each other (viz. Benzotriazole, Thiadiazole and Thiazolidinone) along with their antimicrobial activity. The structure of synthesized compounds has been established on the basis of their physico-chemical properties and spectral data (I.R. and N.M.R. spectroscopy).

Download or read book Science of Synthesis Houben Weyl Methods of Molecular Transformations Vol 13 written by Richard C. Storr and published by Thieme. This book was released on 2014-05-14 with total page 1663 pages. Available in PDF, EPUB and Kindle. Book excerpt: Science of Synthesis: Houben-Weyl Methods of Molecular Transformations is the entirely new edition of the acclaimed reference series Houben-Weyl, the standard synthetic chemistry resource since 1909. This new edition is published in English and will comprise 48 volumes published between the years 2000 and 2008. Science of Synthesis is a quality reference work developed by a highly esteemed editorial board to provide a comprehensive and critical selection of reliable organic and organometallic synthetic methods. This unique resource is designed to be the first point of reference when searching for a synthesis strategy. Contains the expertise of presently 450 leading chemists worldwide. Critically evaluates the preparative applicability and significance of the synthetic methods. Discusses relevant background information and provides detailed experimental procedures For full information on the Science of Synthesis series, visit the Science of Synthesis Homepage. Series Editors: D. Bellus, S. V. Ley, R. Noyori, M. Regitz, E. Schaumann, I. Shinkai, E. J. Thomas, B. M. Trost, P. J. Reider

Download or read book Reactions of Benzotriazolo 2 1 alpha benzotriazole Derivatives I Synthesis of New Insensitive High Density Energetic Compounds written by and published by . This book was released on 1995 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The sequential preference of electrophilic attack on the dibenzotetraazapentalene ring system 6 has unequivocally been shown to be in the order of position 2(8)> 4(10)” 1(7) and 3(9). However, nucleophilic substitution reactions with sodium azide were found to be substrate dependent. Substitution occurred at the 3(9)-position of 9 followed by elimination of hydrogen chloride to give 10 while direct substitution of azide for the 4(10)-nitro group of 2 was found to yield 13. The reactivity of the dibenzotetraazapentalene derivatives toward electrophiles and nucleophiles was exploited for the synthesis of the new heterocyclic system 3,4,9,10-bisfuroxano- 5,1 1-dehydro-5H,11H-benzotriazolo(2,1-alpha)benzotriazole 11. From this study the first of a new class of insensitive energetic materials 4 has been synthesized in a straightforward fashion from 2. jg.

Download or read book Microwave Mediated Synthesis of Nitrogen And or Oxygen containing Compounds written by Chunming Cai and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: ABSTRACT: Benzotriazole is a widely used synthetic auxiliary to many synthetic applications. We developed convenient and efficient methods for preparing benzotriazole derivatives and used them to prepare a few kinds of nitrogen- and/or oxygen-containing compounds. Microwave synthesizers are widely used by organic chemists because they give excellent and repeatable results. We examined preparation of N-acylbenzotriazoles from carboxylic acids or acid chlorides. These intermediates were used to synthesize oxazolines and thiazolines, secondary and tertiary amides, hydroxyl carboxamides, and esters. We were able to complete high-yielding reactions starting from N-acylbenzotriazoles in 10 min, using microwaves as the heating source. We prepared various imidoylbenzotriazoles via two novel methods and examined the synthetic approaches to obtain polysubstituted amidines and 1,5-disubstituted tetrazoles in high yields in brief reactions. To prepare polysubstituted amidines, we used a microwave synthesizer (CEM) to accelerate the reactions. All the reactions were completed within 10 min and high yields were obtained. To prepare 1,5-disubstituted tetrazoles, we completed the reactions in half an hour under room temperature to give high yields without using microwaves.

Download or read book Synthesis Properties and Molecular Analysis of 2 2 hydroxy 5 methylphenyl benzotriazole Derivatives written by 費南鬥 and published by . This book was released on 2020 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis of Benzotriazolo 1 2 A Benzotriazole Derivatives as New High Density Insensitive Energetic Materials written by and published by . This book was released on 1996 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The synthesis of the new high density energetic compound 4,8-dinitro- 12H- 1,2,5 oxadiazolo3,4-E 1,2,5 oxadiazolo3',4':4,5benzotriazolo 1,2-Abenzotriazol-13-ium inner salt 1,11-dioxide (7) was achieved in three steps (37% yield) from 2,4,8,10- tetranitrobenzotriazolo1,2-Abenzotriazolo-6-ium inner salt (4). The compound 7 was found to be thermally stable up to 274 deg C and was insensitive to impact (hammer/anvil test). p1.

Download or read book Four Plus One Annulation Reactions of trialkylsilyl ketenes written by Christopher P. Davie and published by . This book was released on 2005 with total page 374 pages. Available in PDF, EPUB and Kindle. Book excerpt: (Trialkylsilyl)vinylketenes ("(TAS)vinylketenes") and (trialkylsilyl)arylketenes ("(TAS)- arylketenes") function as versatile four-carbon building blocks for the synthesis of carbocyclic and heterocyclic compounds. A new [4 + 1] annulation strategy for the synthesis of substituted 2-indanones, based on the reaction of TAS-arylketenes with trimethylsilyl diazomethane, has been developed. In addition, a new class of carbenoid reagents for our previously reported [4 + 1] cyclopentenone annulation has been identified. Studies have shown that the reaction of a- benzotriazolyl organolithium compounds (prepared via metallation of readily available N- substituted benzotriazole derivatives) with (TAS)vinylketenes generates dienolate intermediates which cyclize to form cyclopentenones. Most cases of the annulation proceed with a high level of diastereoselectivity, and deliver highly substituted and functionalized 2-silylcyclopentenones in good yield. Furthermore, the vinylsilane moiety incorporated in the [4 + 1] annulation products provides a useful handle for further synthetic transformations. Preliminary studies focused on elaboration of the cyclopentenone products have laid the groundwork for future applications of this [4 + 1] annulation methodology.

Download or read book Comprehensive Organic Functional Group Transformations II written by and published by Elsevier. This book was released on 2004-12-16 with total page 9196 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Organic Functional Group Transformations II (COFGT-II) will provide the first point of entry to the literature for all scientists interested in chemical transformations. Presenting the vast subject of organic synthesis in terms of the introduction and interconversion of all known functional groups, COFGT-II provides a unique information source documenting all methods of efficiently performing a particular transformation. Organised by the functional group formed, COFGT-II consists of 144 specialist reviews, written by leading scientists who evaluate and summarise the methods available for each functional group transformation. Also available online via ScienceDirect – featuring extensive browsing, searching, and internal cross-referencing between articles in the work, plus dynamic linking to journal articles and abstract databases, making navigation flexible and easy. For more information, pricing options and availability visit www.info.sciencedirect.com. By systematically treating each functional group in turn the work also identifies what is not known, thus pointing the way to new research areas Follows the systematic layout of the successful 1995 COFGT reference work, based on the arrangement and bonding of hetero-atoms around a central carbon atom The work will save researchers valuable time in their research as each chapter is written by experts who have critically read and reviewed the literature and presented the best methods of forming every known functional group

Download or read book Benzotriazole Auxiliary in the Synthesis of Heterocyclic Compounds and Amino Acid Derivatives written by Rong Jiang and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Examples of the activation of the C-N bond of substituents attached to benzotriazole nitrogen due to the good leaving ability of benzotriazole are demonstrated in chapter 4 and chapter 5. Recently, our group has extensively studied N-acylbenzotriazoles as powerful neutral acylation reagents. In a further extension of this methodology, I have now applied N-aminoacylbenzotriazoles in the synthesis of various precursors for biologically active compounds. Chapter 6 describes a novel method to prepare chiral alpha-aminoalkyl heterocyclic ketones from N-protected N-aminoacylbenzotriazoles without racemization. In chapter 7, novel syntheses of chiral beta- and gamma-amino acid derivatives utilizing N- aminoacylbenzotriazoles from aspartic acid and glutamic acid has been discussed.

Download or read book Thiazole written by Anton Svadlenka and published by Nova Science Publishers. This book was released on 2020-08-31 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: Thiazole, or 1,3-thiazole, is a five-member heterocyclic compound that contains a sulfur atom and a nitrogen atom. The term "thiazoles" also refers to a large family of molecules containing one or more thiazole rings.The design and synthesis of novel thiazole derivatives as anti-cancer agents has been the focal point of recent research, in great part because of their biological properties and their applications in drug development. In Thiazole: Synthesis and Reactions, an attempt is made to review the reports of recent research advances in the area of aqueous phase synthesis of thiazoles and benzothiazoles, particularly those published in the last decade.In closing, the authors showcase the recent research advances in thiazole/benzothiazole synthesis involving microwave irradiation

Download or read book Synthesis and Acetylcholinesterase Inhibition Studies of Substituted 1 2 3 Benzotriazole Derivatives written by Deepshikha Nagpal and published by . This book was released on 1994 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis of Novel N 1 and N 2 Substituted Indazole and Benzotriazole Derivatives written by Bin Wang and published by . This book was released on 2009 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Benzotriazole Mediated Synthesis of Enamine Derivatives written by Augustine Donkor and published by . This book was released on 2000 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Progress in Heterocyclic Chemistry written by Gordon W. Gribble and published by Newnes. This book was released on 2012-11-29 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: Annotation 'Progress in Heterocyclic Chemistry' is an annual review commissioned by the International Society of Heterocyclic Chemistry. The volumes contain both highlights of the previous year's literature on heterocyclic chemistry and articles on emerging topics of particular interest to heterocyclic chemists.

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 846 pages. Available in PDF, EPUB and Kindle. Book excerpt: