Quinoxalines, Volume 61, Spplement 2

Quinoxalines, Volume 61, Spplement 2 PDF Author: Desmond J. Brown
Publisher: John Wiley & Sons
ISBN: 0471533777
Category : Science
Languages : en
Pages : 528

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Book Description
This volume in the Chemistry of Heterocyclic Compounds series presents a comprehensive review of the quinoxaline literature from 1975 to the present (2002), updating Volumes 5 and 35. It provides an alphabetical table of known simple quinoxalines, including new compounds discussed in this volume and their physical data, as well as the pyrazines from the original volumes. Biological activities, spectral or other physical studies, and other such materials appear at appropriate points in the text. The in-depth coverage includes synthesis, reactions, spectroscopic, and physical properties for each class of compounds. Chemistry of Heterocyclic Compounds, Volume 61: Supplement II provides the most up-to-date summation of knowledge of the synthetic chemistry of quinoxalines.

Quinoxalines, Volume 61, Spplement 2

Quinoxalines, Volume 61, Spplement 2 PDF Author: Desmond J. Brown
Publisher: John Wiley & Sons
ISBN: 0471533777
Category : Science
Languages : en
Pages : 528

Get Book Here

Book Description
This volume in the Chemistry of Heterocyclic Compounds series presents a comprehensive review of the quinoxaline literature from 1975 to the present (2002), updating Volumes 5 and 35. It provides an alphabetical table of known simple quinoxalines, including new compounds discussed in this volume and their physical data, as well as the pyrazines from the original volumes. Biological activities, spectral or other physical studies, and other such materials appear at appropriate points in the text. The in-depth coverage includes synthesis, reactions, spectroscopic, and physical properties for each class of compounds. Chemistry of Heterocyclic Compounds, Volume 61: Supplement II provides the most up-to-date summation of knowledge of the synthetic chemistry of quinoxalines.

Quinoxalines

Quinoxalines PDF Author: Vakhid A. Mamedov
Publisher: Springer
ISBN: 3319297732
Category : Science
Languages : en
Pages : 451

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Book Description
This book reviews the fundamental aspects of quinoxaline chemistry: synthesis, reactions, mechanisms, structure, properties, and uses. The first four chapters present a survey of the developments in quinoxaline chemistry since the publication of the monograph on “Condensed Pyrazines” by Cheeseman and Cookson in 1979. These chapters give comprehensive coverage of all the methods of the synthesis of quinoxalines and the important quinoxaline-containing ring systems such as thiazolo[3,4-a]-, pyrrolo[1,2-a]-, and imidazo[1,5-a]quinoxalines. Chapter five describes many new methods for the construction of quinoxaline macrocycles, which are important in applications such as optical devices and materials. The final chapter reviews all previously known rearrangements of heterocyclic systems that lead to benzimidazole derivatives. Mamedov critically analyses these transformations to reveal a novel acid-catalyzed rearrangement of quinoxalinones giving 2-heteroarylbenzimidazoles and 1-heteroarylbenzimidazolones in the presence of nucleophilic reactants (MAMEDOV Heterocycle Rearrangement). This book is of interest to researchers in the fields of heterocyclic and synthetic organic chemistry.

Chemistry of Heterocyclic Compounds

Chemistry of Heterocyclic Compounds PDF Author: D. J. Brown
Publisher:
ISBN:
Category : Heterocyclic compounds
Languages : en
Pages : 536

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Book Description


Purification of Laboratory Chemicals

Purification of Laboratory Chemicals PDF Author: W.L.F. Armarego
Publisher: Butterworth-Heinemann
ISBN: 0128054565
Category : Science
Languages : en
Pages : 1200

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Book Description
Purification of Laboratory Chemicals, Eighth Edition, tabulates methods taken from literature for purifying thousands of individual commercially available chemicals. To help in applying this information, the more common processes currently used for purification in chemical laboratories and new methods are discussed. For dealing with substances not separately listed, a chapter is included setting out the usual methods for purifying specific classes of compounds. - Features empirical formulae inserted for every entry - References all important applications of each substance - Updates and confirms the accuracy of all CAS registry numbers, molecular weights, original reference, and physical data - Provides increased coverage of the latest commercial chemical products, including pharmaceutical chemicals, updated safety and hazard material, and expanded coverage of laboratory and work practices and purification methods

Hazardous Chemicals Handbook

Hazardous Chemicals Handbook PDF Author: P A CARSON
Publisher: Elsevier
ISBN: 008049515X
Category : Technology & Engineering
Languages : en
Pages : 621

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Book Description
The authors' aim with this handbook, is to provide a rapid ready-reference to help in the often complex task of handling, using and disposing of chemicals safely and with minimum risk to people's health or damage to facilities or to the environment. The book provides look-up data, and concise, clear explanations of general chemical principles, physiochemical and reactive properties, toxicities and exposure limits, flammability characteristics, monitoring techniques, personal protection and other parameters and requirements relating to compliance with designated safe practice, control of risks to people's health and limitation of environmental impact. - Over 600 pages of valuable reference materialIncludes information on physiochemical and reactive properties, toxicities and exposure limits, flammability characteristics, monitoring techniques, personal protection and other parameters and requirements relating to complianceSummarizes core information for quick reference in the workplace or in transit

Amino Acids: Insights and Roles in Heterocyclic Chemistry

Amino Acids: Insights and Roles in Heterocyclic Chemistry PDF Author: Zerong Wang
Publisher: CRC Press
ISBN: 1000751694
Category : Science
Languages : en
Pages : 1675

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Book Description
This first-of-its-kind four-volume book series, Amino Acids: Insights and Roles in Heterocyclic Chemistry, provides readers with up-to-date information on alpha-amino acids, the potential challenges in working with alpha-amino acids, the protecting groups for the carboxyl, amino and side chain groups of the amino acids, and the most popular heterocyclic compounds that are originating from alpha-amino acids. These heterocyclic compounds include hydantoins, thiohydantoins (including 2-thiohydantoins, 4-thiohydantoins, 2,4-dithiohydantoins), 2,5-diketopiperazines, N-carboxyanhydrides, N-thiocarboxyanhydrides, sydnones, sydnonimines, azlactones, pseudoazlactones, and oxazolidin-5-ones. This is the first resource to comprehensively collect all the heterocycles that can be directly prepared from alpha-amino acids. In addition, almost all kinds of synthetic methods for a particular type of heterocycles from alpha-amino acids are included, along with the detailed mechanistic discussions and experimental procedures. Volume 1: Protecting Groups collects and discusses the 260 protecting groups relating to amino acids, which have been organized by carboxyl group, amino group, and side chain groups. The conditions to introduce these protecting groups as well as their deprotecting procedures have also been incorporated, along with the physical properties, solvent effects, and temperature effects on the solubility of amino acids. It presents the solubility of glycine and phenylalanine in a variety of solvent systems to show the impact on amino acid, where glycine generally represents the polar amino acid whereas phenylalanine represents the amino acid of non-polar side chain. In Volume 2: Hydantoins, Thiohydantoins, and 2,5-Diketopiperazines, the author has compiled the three IUPAC accepted nomenclature systems for heterocyclic compounds, which will be very useful for readers working in the heterocyclic chemistry field for giving the synthesized molecules their correct names. In addition, three groups of heterocyclic compounds, i.e., hydantoins, thiohydantoins (including 2-thiohydantoin, 4-thiohydantoin and 2,4-dithiohydantoin), and 2,5-diketopiperazines, have been organized with updated literature information. Particularly, all three groups of heterocyclic compounds have demonstrated many important biological activities, particularly anticancer and antibacterial activities. On the other hand, these three groups of heterocycles can be applied as substrates to make other chemical derivatives, particularly novel unnatural amino acids. All their reactivities have been compiled and updated. These will be very valuable for readers who have been working in this area or have interest in this area. Volume 3: N-Carboxyanhydrides, N-Thiocarboxyanhydrides, and Sydnones presents up-to-date detailed information on two types of heterocyclic compounds that are originated from alpha-amino acids: NCAs/NTAs and sydnones/sydnonimines. The volume also covers the more than 10 initiating systems for the NCA monomers to undergo the ring-opening polymerization, which are very useful for readers in order to make living polypeptides/polypeptoids. In addition, the method to characterize these prepared polypeptides/polypeptoids are included. Particularly, two modern mass spectrometric techniques (MALDI-TOF and ESI-TOF) have been explained with detailed examples, where the elucidation of molecular weight of protein based on the ESI-TOF spectra have been given with a practical example as well as the theory that is based on, a unique feature of the volume. Volume 4: Azlactones and Oxazolidin-5-ones discusses two types of simple heterocycles that can be prepared from alpha-amino acids, i.e., azlactones (also known as oxazolones, 4-unsaturated azlactones included) and oxazolidin-5-ones. These heterocyclic compounds behave differently in both biological and chemical properties, and their biological activities are presented in a well-organized manner in this volume. This unique 4-volume set thoroughly covers more than seven types of heterocyclic compounds that are originated from alpha-amino acids, providing carefully compiled updated information with detailed examples. The author has shared many thoughtful insights based on his strong background in physical organic chemistry. The volumes will be highly valuable for graduate students and senior students, as well as for professors and researchers working in the field of medicinal and pharmaceutical chemistry, organic chemistry, organic synthesis, heterocycles, and proteins and peptides.

The Chemistry of Heterocyclic Compounds

The Chemistry of Heterocyclic Compounds PDF Author: D. J. Brown
Publisher:
ISBN:
Category : Chemistry of heterocyclic compounds
Languages : en
Pages : 420

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Book Description


Zeitschrift Für Naturforschung

Zeitschrift Für Naturforschung PDF Author:
Publisher:
ISBN:
Category : Chemistry
Languages : en
Pages : 566

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Book Description


Quinoxalines, Volume 61, Spplement 2

Quinoxalines, Volume 61, Spplement 2 PDF Author: Desmond J. Brown
Publisher: Wiley-Interscience
ISBN: 9780471264958
Category : Science
Languages : en
Pages : 0

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Book Description
This volume in the Chemistry of Heterocyclic Compounds series presents a comprehensive review of the quinoxaline literature from 1975 to the present (2002), updating Volumes 5 and 35. It provides an alphabetical table of known simple quinoxalines, including new compounds discussed in this volume and their physical data, as well as the pyrazines from the original volumes. Biological activities, spectral or other physical studies, and other such materials appear at appropriate points in the text. The in-depth coverage includes synthesis, reactions, spectroscopic, and physical properties for each class of compounds. Chemistry of Heterocyclic Compounds, Volume 61: Supplement II provides the most up-to-date summation of knowledge of the synthetic chemistry of quinoxalines.

The logic of chemical synthesis

The logic of chemical synthesis PDF Author: E.J. Corey
Publisher: Рипол Классик
ISBN: 5885010811
Category : Science
Languages : en
Pages : 447

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Book Description