New Aspects in Phosphorus Chemistry III
Author | : Jean-Pierre Majoral |
Publisher | : Springer Science & Business Media |
Total Pages | : 238 |
Release | : 2003 |
Genre | : Biochemistry |
ISBN | : 9783540007142 |
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Author | : Jean-Pierre Majoral |
Publisher | : Springer Science & Business Media |
Total Pages | : 238 |
Release | : 2003 |
Genre | : Biochemistry |
ISBN | : 9783540007142 |
Author | : Jean-Pierre Majoral |
Publisher | : Springer Science & Business Media |
Total Pages | : 268 |
Release | : 2002 |
Genre | : Biochemistry |
ISBN | : 3540440860 |
Strong non-ionic bases are highly advantageous as stoichiometric reagents and as catalysts in synthetic organic chemistry owing to side reactions that f- quently occur when ionic bases such as LDA or alkali metal alkoxides are employed. A second reason that non-ionic bases are frequently more useful in these applications is that such bases are often more soluble in less polar organic solvents, particularly at low temperatures. Thirdly, non-ionic bases can provide reactive naked or tightly associated deprotonated substrate anions that are s- bilized by the relatively large, poorly solvated cations formed by the protonated base. In such cations, extensive positive charge delocalization can occur. Prior to our work on pro-azaphosphatranes of type 1 (Scheme 1), the very strong n- ionic bases utilized for organic transformations were largely confined to the nitrogenous bases shown below (Scheme 2). Scheme 1 Scheme 2 4 J.G. Verkade 2 Uses of Strong Nonionic Nitrogen Bases 2. 1 Amines One of the earliest strong non-ionic bases to make its appearance was Proton Sponge and its derivatives [1] and these systems have been reviewed [2]. More recently Proton Sponge has been used in the palladium-catalyzed arylation of 2,3-dihydrofuran [3], and it also catalyzes Knoevenagel condensations of s- strates possessing activated methylene groups [4]. Recently the synthesis of the macrocyclic tetramine below (Scheme 3) was reported [5]. The encrypted nitrogens are very basic (pK,24.
Author | : Jean-Pierre Majoral |
Publisher | : Springer |
Total Pages | : 250 |
Release | : 2003-07-01 |
Genre | : Science |
ISBN | : 3540457313 |
Undoubtedly the chemistry of phosphorus appears more and more attractive in the sense that phosphorus presents an extraordinary versatile behaviour that allows the synthesis of a large number of different phosphorus reagents usable for applications in different fields, from biology to material science without f- getting key applications in catalysis. The full maturity of this topic of research can be explained by all the acquired knowledge over these twenty last years. Organic and inorganic chemistries of P , P and P species have been the s- in ]V v ject of thousands of publications while the chemistry of low coordinated ph- phorus derivatives experienced its hour of glory from the 1970s to the early 1990s. In parallel, interactions between phosphorus compounds and transition metals afforded many complexes, a lot of which present fascinating properties as catalysts. The interest in all these themes really is not decreasing, indeed some fas- nating areas of research are emerging or are the subject of many investigations: the medicinal chemistry of bisphosphonates, the role of phosphorus in biology, phosphorus ligands in radiopharmaceutical chemistry, phosphorus in material science, new polymers and dendrimers incorporating phosphorus, and as- metric catalysis to name but a few. Indeed researchers, benefitting from their background in basic phosphorus chemistry are developing many new fields of research.
Author | : Jean-Pierre Majoral |
Publisher | : Springer Science & Business Media |
Total Pages | : 300 |
Release | : 2005 |
Genre | : Biochemistry |
ISBN | : 9783540224983 |
Phosphorus chemistry is a diverse field and this volume focuses on new developments of "old themes" with different approaches and ideas, state of the art for two topics of general interest, and the emerging fields of research. This volume only describes in part the huge number of original papers on phosphorus-related topics.
Author | : John Emsley |
Publisher | : John Wiley & Sons |
Total Pages | : 584 |
Release | : 1976 |
Genre | : Science |
ISBN | : |
Author | : Jean-Luc Montchamp |
Publisher | : Springer |
Total Pages | : 250 |
Release | : 2015-03-06 |
Genre | : Science |
ISBN | : 3319154737 |
Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.
Author | : Louis D. Quin |
Publisher | : John Wiley & Sons |
Total Pages | : 416 |
Release | : 2000-02-04 |
Genre | : Science |
ISBN | : 9780471318248 |
Die organische Chemie des Phosphors - ein großes, äußerst lebendiges Forschungsfeld - umfaßt sowohl Verbindungen mit Kohlenstoff-Phosphor-Bindungen als auch organische Ester anorganischer Phosphorsäuren. Dieser Band behandelt die meisten phosphorhaltigen funktionellen Gruppen und daneben aktuelle Fragen wie z.B. ungewöhnliche Koordinationszustände, Heterocyclen, Anwendungen der 31P-NMR und andere spektroskopische Verfahren. Soweit bekannt, werden auch elektronische Reaktionsmechanismen und reaktive Intermediate diskutiert. Mit zahlreichen Literaturhinweisen! (03/00)
Author | : |
Publisher | : Newnes |
Total Pages | : 7694 |
Release | : 2013-07-23 |
Genre | : Science |
ISBN | : 0080965296 |
Comprehensive Inorganic Chemistry II, Nine Volume Set reviews and examines topics of relevance to today’s inorganic chemists. Covering more interdisciplinary and high impact areas, Comprehensive Inorganic Chemistry II includes biological inorganic chemistry, solid state chemistry, materials chemistry, and nanoscience. The work is designed to follow on, with a different viewpoint and format, from our 1973 work, Comprehensive Inorganic Chemistry, edited by Bailar, Emeléus, Nyholm, and Trotman-Dickenson, which has received over 2,000 citations. The new work will also complement other recent Elsevier works in this area, Comprehensive Coordination Chemistry and Comprehensive Organometallic Chemistry, to form a trio of works covering the whole of modern inorganic chemistry. Chapters are designed to provide a valuable, long-standing scientific resource for both advanced students new to an area and researchers who need further background or answers to a particular problem on the elements, their compounds, or applications. Chapters are written by teams of leading experts, under the guidance of the Volume Editors and the Editors-in-Chief. The articles are written at a level that allows undergraduate students to understand the material, while providing active researchers with a ready reference resource for information in the field. The chapters will not provide basic data on the elements, which is available from many sources (and the original work), but instead concentrate on applications of the elements and their compounds. Provides a comprehensive review which serves to put many advances in perspective and allows the reader to make connections to related fields, such as: biological inorganic chemistry, materials chemistry, solid state chemistry and nanoscience Inorganic chemistry is rapidly developing, which brings about the need for a reference resource such as this that summarise recent developments and simultaneously provide background information Forms the new definitive source for researchers interested in elements and their applications; completely replacing the highly cited first edition, which published in 1973
Author | : James E. House |
Publisher | : Academic Press |
Total Pages | : 585 |
Release | : 2010-09-22 |
Genre | : Science |
ISBN | : 0080916775 |
Descriptive Inorganic Chemistry, Second Edition, covers the synthesis, reactions, and properties of elements and inorganic compounds for courses in descriptive inorganic chemistry. This updated version includes expanded coverage of chemical bonding and enhanced treatment of Buckminster Fullerenes, and incorporates new industrial applications matched to key topics in the text. It is suitable for the one-semester (ACS-recommended) course or as a supplement in general chemistry courses. Ideal for majors and non-majors, the book incorporates rich graphs and diagrams to enhance the content and maximize learning. - Includes expanded coverage of chemical bonding and enhanced treatment of Buckminster Fullerenes - Incorporates new industrial applications matched to key topics in the text
Author | : Arlen Frank |
Publisher | : Elsevier |
Total Pages | : 688 |
Release | : 2013-06-03 |
Genre | : Science |
ISBN | : 0124072232 |
Provides a high level reference source for scientists engaged in any aspect of plant research - chemistry, biochemistry or physiology - with primary focus on the chemistry of phosphorus-containing compounds that occur naturally in the plant kingdom, and specifically in the higher plants (Plantae). The book is comprehensive with respect to nomenclature, physical properties, and distribution worldwide. There are many tables of actual data on phosphorus compounds occurring in whole plants and parts of plants. The tables provide detailed data that is needed by the food industry, agriculture, etc as many of the phosphorus compounds are common to both plants and animals. Two appendices cover other aspects including changes in phosphorus-containing compounds during germination and their accumulation during growth and senescence. The final sections of the book comprise separate indexes of plants, compounds and authors. - Comprehensive examination of phosphorus compounds found in plants - Extensive tables listing types of compounds and their occurrence in plants including: Nomenclature; Occurrence; Physical Properties; Synthesis; Hydrolysis; Phosphorylation; Extraction; Separation and Analysis - Easy to use indexes of plants, compounds and authors