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1. |
Record Nr. |
UNINA9910140280003321 |
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Titolo |
Lithium compounds in organic synthesis : from fundamentals to applications / / edited by Renzo Luisi and Vito Capriati |
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Pubbl/distr/stampa |
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Weinheim, Germany : , : Wiley-VCH Verlag, , 2014 |
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©2014 |
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ISBN |
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3-527-66753-9 |
3-527-66751-2 |
3-527-66754-7 |
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Descrizione fisica |
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1 online resource (571 p.) |
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Disciplina |
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Soggetti |
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Cyclic compounds |
Lithium compounds |
Organic compounds - Synthesis |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Description based upon print version of record. |
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Nota di bibliografia |
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Includes bibliographical references at the end of each chapters and index. |
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Nota di contenuto |
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Lithium Compounds in Organic Synthesis; Contents; List of Contributors; Foreword; Preface; Part I New Structural Aspects of Lithium Compounds; Chapter 1 Structure-Reactivity Relationship in Organolithium Compounds; 1.1 Structural Principles in Organolithium Compounds; 1.2 Donor-Base-Free Structures; 1.2.1 Tetramers; 1.2.2 Hexamers; 1.2.3 Comparison of [Me3SiCH2Li]6 and [n-BuLi]6; 1.3 Disaggregation with Lewis Bases; 1.3.1 Tetramers of Alkyllithium Compounds; 1.3.2 Asymmetric Aggregates of [Me3SiCH2Li] (4); 1.3.3 An Octameric Aggregate of [Me3SiCH2Li]6 |
1.4 Donor-Base-Induced Dimers and Monomers1.4.1 Alkyllithium and Trimethylsilylmethyllithium Compounds; 1.4.2 PMDETA Aggregated Monomers; 1.5 Heterobimetallic Organolithium Compounds; 1.6 Conclusion and Outlook; References; Further Reading; Chapter 2 Computational Perspectives on Organolithiums; 2.1 Introduction; 2.2 The Nature of Bonds to Lithium; 2.3 Aggregation of Lithium Organic Compounds; 2.4 Solvation Effects; 2.5 Lithium Alkoxides and Lithium Amides; 2.6 Computational Studies on Various Organolithium |
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Applications; 2.7 Conclusion and Outlook; References; Further Reading |
Chapter 3 Spectroscopic Advances in Organolithium Reactivity: The Contribution of Rapid-Injection NMR (RINMR)3.1 Introduction; 3.2 The Curtin-Hammett Principle; 3.3 Organolithium NMR; 3.4 Features of RINMR; 3.4.1 Brief History; 3.4.2 Apparatus Descriptions and Rapidity of Acquisition; 3.4.3 Temperature Range and Control; 3.4.4 Volume Accuracy of Injection; 3.5 Use of RINMR to Study Organometallic Reactions; 3.5.1 n-Butyllithium Aggregate Reactivity (1985); 3.5.2 Magnesium Chelates in Carbonyl Additions (1987/1990); 3.5.3 Lithium Enolate Aldol (1992) |
3.5.4 Alkyllithium Polymerization (1995/1999)3.5.5 Tin Transmetallation (2007); 3.5.6 Cuprates (2002-Present); 3.5.7 n-BuLi Aggregate Reactivity Revisited (2007); 3.5.8 Tris(trimethylsilyl)methyllithium (2008/2009); 3.5.9 Enolization and Lithium Aldol (2011); 3.6 Conclusion and Outlook; References; Further Reading; Chapter 4 Spectroscopic Advances in Structural Lithium Chemistry: Diffusion-Ordered Spectroscopy and Solid-State NMR; 4.1 General Introduction; 4.2 Application of Solution NMR to the Structural Characterization of Organolithium Compounds; 4.2.1 Diffusion NMR Measurement Methods |
4.2.1.1 Pulsed Field Gradient Spin Echo (PFGSE)4.2.1.2 From the First to the Second Dimension: DOSY NMR Experiment; 4.2.2 DOSY Application to the Structural Analysis of Organolithium Compounds; 4.2.2.1 Structure of the Mixed Methyllithium/Lithium Chloride Aggregate; 4.2.2.2 Structure of a Lithium Phosphido-Borane; 4.2.2.3 Structure of Lithium Zincate; 4.2.3 Conclusion; 4.3 Solid-State NMR; 4.3.1 Basic Principles; 4.3.1.1 Homo and Heteronuclear Dipole-Dipole Couplings (D: Dipole-Dipole); 4.3.1.2 Chemical Shift Anisotropy (CSA); 4.3.1.3 Quadrupolar Interactions for Nuclei with I< 1/2 (Q) |
4.3.1.4 Magic Angle Spinning (MAS) |
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Sommario/riassunto |
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This unique book covers fundamentals of organolithium compounds and gives a comprehensive overview of the latest synthetic advances and developments in the field. Part I covers computational and spectroscopic aspects as well as structure-reactivity relationships of organolithiums, whereas Part II deals with new lithium-based synthetic methodologies as well as novel synthetic applications of functionalized lithium compounds. A useful resource for newcomers and active researchers involved in organic synthesis, whether working in academia or industry! |
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2. |
Record Nr. |
UNINA9910485024403321 |
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Titolo |
Conceptual Structures: Common Semantics for Sharing Knowledge : 13th International Conference on Conceptual Structures, ICCS 2005, Kassel, Germany, July 17-22, 2005, Proceedings / / edited by Frithjof Dau, Marie-Laure Mugnier, Gerd Stumme |
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Pubbl/distr/stampa |
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Berlin, Heidelberg : , : Springer Berlin Heidelberg : , : Imprint : Springer, , 2005 |
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ISBN |
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9783540318859 |
3540318852 |
9783540277835 |
3540277838 |
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Edizione |
[1st ed. 2005.] |
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Descrizione fisica |
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1 online resource (XI, 467 p.) |
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Collana |
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Lecture Notes in Artificial Intelligence, , 2945-9141 ; ; 3596 |
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Altri autori (Persone) |
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DauFrithjof |
MugnierMarie-Laure |
StummeGerd <1967-> |
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Disciplina |
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Soggetti |
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Coding theory |
Information theory |
Artificial intelligence |
Algorithms |
Machine theory |
Computer science - Mathematics |
Discrete mathematics |
Application software |
Coding and Information Theory |
Artificial Intelligence |
Formal Languages and Automata Theory |
Discrete Mathematics in Computer Science |
Computer and Information Systems Applications |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Note generali |
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Bibliographic Level Mode of Issuance: Monograph |
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Nota di bibliografia |
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Includes bibliographical references and index. |
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Nota di contenuto |
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Invited Papers -- Patterns for the Pragmatic Web -- Conceptual Graphs |
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for Semantic Web Applications -- Knowledge Representation and Reasoning in (Controlled) Natural Language -- What Is a Concept? -- Applications of Description Logics: State of the Art and Research Challenges -- Methodologies for the Reliable Construction of Ontological Knowledge -- Using Formal Concept Analysis and Information Flow for Modelling and Sharing Common Semantics: Lessons Learnt and Emergent Issues -- On the Need to Bootstrap Ontology Learning with Extraction Grammar Learning -- Conzilla — A Conceptual Interface to the Semantic Web -- Theoretical Foundations -- Variables in Concept Graphs -- Arbitrary Relations in Formal Concept Analysis and Logical Information Systems -- Merge-Based Computation of Minimal Generators -- Representation of Data Contexts and Their Concept Lattices in General Geometric Spaces -- Local Negation in Concept Graphs -- Morphisms in Context -- Contextual Logic and Aristotle’s Syllogistic -- States ofDistributed Objects in Conceptual Semantic Systems -- Knowledge Engineering and Tools -- Hierarchical Knowledge Integration Using Layered Conceptual Graphs -- Evaluation of Concept Lattices in a Web-Based Mail Browser -- D-SIFT: A Dynamic Simple Intuitive FCA Tool -- Analyzing Conflicts with Concept-Based Learning -- Querying a Bioinformatic Data Sources Registry with Concept Lattices -- How Formal Concept Lattices Solve a Problem of Ancient Linguistics -- A New Method to Interrogate and Check UML Class Diagrams -- Knowledge Acquisition and Ontologies -- Language Technologies Meet Ontology Acquisition -- Weighted Pseudo-distances for Categorization in Semantic Hierarchies -- Games of Inquiry for Collaborative Concept Structuring -- Toward Cooperatively-Built Knowledge Repositories -- What Has Happened to Ontology -- Enhancing the Initial Requirements Capture of Multi-Agent Systems Through Conceptual Graphs -- Outline of trikonic?* k: Diagrammatic Trichotomic. |
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Sommario/riassunto |
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The 13th International Conference on Conceptual Structures (ICCS 2005) was held in Kassel, Germany, during July 17-22, 2005. Information about the c- ference can be found athttp://www.kde.cs.uni-kassel.de/conf/iccs05. The title of this year's conference, "Common Semantics for Sharing Kno- edge",waschosentoemphasizeontheonehandtheoverallaimofanyknowledge representationformalism, to support the sharing of knowledge, and on the other hand the importance of a common semantics to avoiddistortion of the meaning. We understand that both aspects are of equal importance for a successful future of the researcharea of conceptual structures. We are thus happy that the papers presentedatICCS2005addressedbothapplicationsandtheoreticalfoundations. "Sharing knowledge" can also be understood in a separate sense. Thanks to the German Research Foundation, DFG, we were able to invite nine inter- tionally renowned researchers from adjacent research areas. We had stimulating presentationsandlively discussions,with bidirectionalknowledgesharing.Ev- tually the ground can be laid for establishing common semantics between the respective theories. This year, 66 papers were submitted, from which 22 were selected to be included in this volume. In addition, the ?rst nine papers present the invited talks.Wewishtoexpressourappreciationtoalltheauthorsofsubmittedpapers, to the members of the Editorial Board and the Program Committee, and to the external reviewers for making ICCS 2005 a valuable contribution to the knowledge processing research ?eld. |
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