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Book
Oxetane synthesis
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ISBN: 0443189471 044318948X Year: 2023 Publisher: Amsterdam, Netherlands : Elsevier Inc.,

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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.


Book
Crown ethers and analogous compounds
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ISBN: 1483290875 0444881913 1322268797 9780444881915 Year: 1992 Publisher: Amsterdam New York Elsevier

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Since the discovery of crown ethers by Pedersen in 1967, several thousands of crown ethers and analogous compounds have been synthesized. Their specific characteristics have been investigated and a variety of applications developed. These developments have led to new fields of chemistry called host-guest chemistry and supramolecular chemistry. This book presents the state-of-the-art of the chemistry of crown ethers and analogous compounds. The first chapter provides an orientation in the new fields of chemistry. Chapter 2 reviews advances in synthetic procedures for crown ethers and analogous


Book
Developmental neurotoxicity of PBDEs, mechanisms and implications
Authors: ---
ISBN: 1616686022 9781616686024 1616682957 9781616682958 Year: 2010 Publisher: New York


Book
Oxetane synthesis
Author:
ISBN: 9780443189487 044318948X 9780443189470 0443189471 Year: 2023 Publisher: Amsterdam, Netherlands Elsevier

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Abstract

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.


Book
Mechanisms in homogeneous and heterogeneous epoxidation catalysis
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ISBN: 9780444531889 0444531882 9786611715915 1281715913 0080880223 9780080880228 9781281715913 Year: 2008 Publisher: Amsterdam Boston Elsevier

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The catalytic epoxidation of olefins plays an important role in the industrial production of several commodity compounds, as well as in the synthesis of many intermediates, fine chemicals, and pharmaceuticals. The scale of production ranges from millions of tons per year to a few grams per year. The diversity of catalysts is large and encompasses all the known categories of catalyst type: homogeneous, heterogeneous, and biological. This book summarizes the current status in these fields concentrating on rates, kinetics, and reaction mechanisms, but also covers broad topics including modeli


Book
Epoxy composites
Authors: ---
ISBN: 9781847351555 1847351557 1628709081 1281775177 9786611775179 Year: 2006 Publisher: Shawbury, Shrewsbury, Shropshire, U.K. Rapra Technology Ltd.

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The urge to improve the properties of composite materials has prompted materials scientists to investigate composites with lower and lower reinforcement size, leading to the development of microcomposites and the recent trend in composite research is nanocomposites (with nanometer scale reinforcements). Polymer matrix composite (PMC) can be processed at a much lower temperature, compared to composites with other types of matrix. In this present review, thermosetting composites with epoxy matrices will be discussed in detail. It will be of interest to anyone who manufactures or plans to use epo

Metabolism and function of bioactive ether lipids in the brain
Authors: --- ---
ISBN: 1281397385 9786611397388 0387774017 0387774009 1441926526 Year: 2008 Publisher: New York : Springer,

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Information on bioactive ether lipids and their involvement in neurological disorders is currently scattered throughout the literature in the form of original papers and reviews. Metabolism and Functions of Bioactive Ether Lipids in the Brain provides readers with a comprehensive description of metabolism of bioactive ether lipids in the brain, activities of enzymes involved in their metabolism, and their involvement in neurological disorders. This book will be particularly useful to neuroscience graduate students, academics, and researchers. Clinicians will find this book useful for understanding molecular aspects of neurodegeneration in acute neural trauma and neurodegenerative diseases that are mediated by plamalogen-selective phospholipases A2 and PAF acetyl hydrolases. This monograph is the first to provide a comprehensive description of not only metabolism and role of plasmalogen and platelet activating factor in brain tissue but also the involvement of these lipids with abnormal signal transduction processes in neurological disorders. Key Features • Provides the neuroscience community with extensive description of ether lipids-derived lipid mediators their roles and association with neurological disorders • Particular attention given to the description of keys enzymes associated with the generation of ether lipid-derived lipid mediators • Illustrated with chemical structures and line diagrams of signal transduction pathways • Discusses the future direction of research on ether lipid metabolism About the Authors Akhlaq A. Farooqui is a leader in the field of bioactive ether lipids, glutamate-mediated neurotoxicity, and brain phospholipases A2. In collaboration with late Dr. Lloyd A. Horrocks, he discovered a plasmalogen-selective phospholipase A2 in brain and showed its stimulation in kainate-mediated neurotoxicity and brain tissue from patients with Alzheimer disease. He has also found a decrease in plasmalogen levels in brain from Alzheimer’s disease patients. This decrease in plasmalogens is due to the stimulation of phospholipases A2. Akhlaq A. Farooqui has authored two monographs, Glycerophospholipids in Brain: Phospholipase A2 in Neurological Disorders (Springer, 2006) and Neurochemical Aspects of Excitotoxicity (Springer, 2007). Tahira Farooqui is an expert on glycerophospholipid and sphingolipid metabolism and neural plasticity. She has published extensively on molecular mechanism of neuroinflammation, interactions between glycerophospholipid and sphingolipid-derived lipid mediators, and neural plasticity in the brain.


Book
Organische chemie
Authors: ---
ISBN: 9789045514345 9045514346 Year: 2006 Publisher: Antwerpen De Boeck

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Hét referentiewerk organische chemie voor alle bachelorstudenten met een wetenschappelijke oriëntatie chemie! Deze uitgave zet de succesformule van het basiswerk *Fundamentele begrippen van algemene chemie* verder.&#13;&#13;- De belangrijkste groepen van organische stoffen worden systematisch behandeld, met de klemtoon op het verband tussen eigenschappen en molecuulstructuren. Zowel de industriële als de biologische producten worden besproken.&#13;- Het experimentele karakter van de chemie komt voortdurend aan bod, maar ook de toepassingen in de hedendaagse maatschappij.&#13;- Er wordt veel aandacht geschonken aan de reactiemechanismen.&#13;- Er zijn afzonderlijke hoofdstukken gewijd aan biochemische stoffen, sachariden, lipiden, proteïnen en nucleïnezuren, evenals aan kunstpolymeren en tensiden.&#13;- De vele oefeningen zetten de studenten aan om na te denken over de leerstof en helpen hen bij het assimileren van de informatie.&#13;- De klemtoon ligt op het begrijpen van de logische eenheid van experimenten en theoretische beschouwingen.&#13;&#13;De belangrijkste troeven van dit basiswerk zijn de **erg volledige inhoud**, het **studentvriendelijke** **opzet** en de **aantrekkelijke presentatie**. Naast de theoretische achtergronden wordt ook veel aandacht besteed aan **experimenten en toepassingen van de organische chemie**.&#13;&#13;**Volledige inhoud**&#13;&#13;- **Canon van de hedendaagse organische chemie**&#13;- **Systematische behandeling van de karakteristieke groepen volgens een vaste patroon**: nomenclatuur, structuur, eigenschappen&#13;- Toelichting van de belangrijkste stoffen uit de **biochemie**&#13;- Essentie van **kunstpolymeren** en **tensiden**&#13;- Consequente **beschrijving van reactiemechanismen**&#13;&#13;**Studentvriendelijk**&#13;&#13;- Steeds een **grondige uitleg in eenvoudige taal**&#13;- Opbouwende en overzichtelijke **samenvattingen**&#13;- Passende **oefeningen** en **opdrachten**&#13;- Een bondige formulering van reeds behandelde **basisprincipes**&#13;- **Numerieke vraagstukken** bij elk hoofdstuk, die de kans bieden om de kennis van fundamentele begrippen uit de algemene chemie te herhalen en te toetsen. Tijdens de studie van de belangrijkste chemische stofgroepen moet immers het inzicht in de samenhang van de theoretische principes bewaard worden.&#13;- **Overzichtsoefeningen** (bijlage 1), die helpen bij het evalueren&#13;- Voorstelling van **reactiemechanismen** per stoffenklasse&#13;&#13;**Experiment- en toepassingsgericht**&#13;&#13;- Heel wat eenvoudige **proeven** om te beklemtonen dat in de wetenschap alles start met experimenten. De beschrijvingen zijn erg summier gehouden, zodat de uitvoering aangepast kan worden aan de plaatselijke mogelijkheden.&#13;&#13;&#13;&#13;- Duidelijke **verklaring van de waarnemingen**&#13;- Verband tussen structuur en eigenschappen&#13;- **Intermezzos** geven toelichting over het nut van de organische chemie in de samenleving.&#13;- Een **verklarende woordenlijst** met een bondige toelichting van de belangrijke termen&#13;- **Overzichtelijk register** met de belangrijkste termen&#13;&#13;

Keywords

Organic chemistry --- biochemie --- General biochemistry --- atoomfysica --- verzadigde koolwaterstoffen --- lipiden --- metalloïden --- molecuulfysica --- acyclische verbindingen --- natuurlijke grondstoffen --- organische chemie --- methaangas --- alkanen --- C (koolstof) --- spectrofotometrie --- fysica --- 547 --- 541 --- 546 --- Chemie --- Organische chemie --- alcoholen --- aldehyden --- alkenen --- alkynen --- aminen --- aminozuren --- benzeen --- carbonzuren --- carbonzuurderivaten --- ethers --- fenolen --- halogeenkoolwaterstoffen --- ketonen --- koolhydraten --- molecuulstructuren --- nitrillen --- nucleïnezuren --- polymerisatie --- proteïnen --- synthetische polymeren --- thiolen --- Alcoholen --- Aldehyden --- Alkanen --- Aminen --- Aminozuren --- Carbonzuren --- Ethers --- Ketonen --- Koolhydraten --- Koolstofverbindingen --- Koolwaterstoffen --- Lipiden --- Moleculen --- Nucleïnezuren --- Polymeren --- Proteïnen --- Sachariden --- Alcohol --- Alkenen --- Alkynen --- Amines --- Benzeen --- Eiwitten --- Ether --- Fenolen --- Koolstof --- Nitrillen --- Tenside --- Thiolen --- chemie --- organische chemie (ler) --- scheikunde (ler) --- alcohol --- aldehyde --- alkaan --- alkeen --- alkyn --- amine --- aminozuur --- carbonzuur --- ether --- fenol --- halogeenkoolwaterstof --- keton --- koolhydraat --- koolstof --- koolstofbinding --- lipide --- moleculaire structuur --- nitril --- nucleïnezuur --- oppervlakactieve stof (tenside) --- proteine --- Inleidingen - Hand- en leerboeken Chemie --- Organische chemie (Chemie der koolstofverbindingen) --- (zie ook: surfactant) --- (zie ook: organische scheikunde) --- 547 Organic chemistry


Book
Inleiding in de bio-organische chemie.
Authors: ---
ISBN: 9789074134958 Year: 2018 Publisher: Wageningen Wageningen Academic Publishers


Book
Catalytic Processes for The Valorisation of Biomass Derived Molecules
Authors: --- ---
ISBN: 3039219154 3039219146 Year: 2019 Publisher: MDPI - Multidisciplinary Digital Publishing Institute

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In the last decades, inedible lignocellulosic biomasses have attracted significant attention for being abundant resources that are not in competition with agricultural land or food production and, therefore, can be used as starting renewable material for the production of a wide variety of platform chemicals. The three main components of lignocellulosic biomasses are cellulose, hemicellulose and lignin, complex biopolymers that can be converted into a pool of platform molecules including sugars, polyols, alchols, ketons, ethers, acids and aromatics. Various technologies have been explored for their one-pot conversion into chemicals, fuels and materials. However, in order to develop new catalytic processes for the selective production of desired products, a complete understanding of the molecular aspects of the basic chemistry and reactivity of biomass derived molecules is still crucial. This Special Issue reports on recent progress and advances in the catalytic valorization of cellulose, hemicellulose and lignin model molecules promoted by novel heterogeneous systems for the production of energy, fuels and chemicals.

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