Stereochemical Analysis Of Alicyclic Compounds By C 13 Nmr Spectroscopy
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Stereochemical Analysis Of Alicyclic Compounds By C 13 Nmr Spectroscopy
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Author : J. A. Whitesell
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Stereochemical Analysis Of Alicyclic Compounds By C 13 Nmr Spectroscopy written by J. A. Whitesell and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Through numerous conversations with other synthetic chemists it became apparent that the great power of carbon nuclear magnetic resonance was being significantly underutilized. In our own work we have found that 13C spectroscopy is a more powerful tool than IH NMR spectroscopy, especially for probing subtle stereochemical questions in complicated systems. This is especially true in five membered ring compounds where IH NMR is at a particular disadvantage. The two techniques can be used independently to solve the same question-that of stereochemistry - but they do so in different ways. Advantage can be taken in IH NMR of a relatively consistent relationship between stereochemical orientation and coupling constants between vicinal protons, while in 13C NMR it is the correlation between spatial relationships of non-hydrogen, y substituents and their effect on chemical shift that can be used to assign stereochemistry. It was also clear that the use of 13C NMR required a different approach to problem solving than that typically used with IH NMR. While the latter technique could be employed with a very general approach (e.g., the Karplus equation), 13C NMR would, at least for the immediate future, require a relatively extensive set of model systems from which the consequences of stereochemical changes could be derived for any given carbon framework.
Stereochemical Analysis Of Alicyclic Compounds By C 13 Nmr Spectroscopy
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Author : J. A. Whitesell
language : en
Publisher: Springer
Release Date : 1988-05-14
Stereochemical Analysis Of Alicyclic Compounds By C 13 Nmr Spectroscopy written by J. A. Whitesell and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988-05-14 with Science categories.
Through numerous conversations with other synthetic chemists it became apparent that the great power of carbon nuclear magnetic resonance was being significantly underutilized. In our own work we have found that 13C spectroscopy is a more powerful tool than IH NMR spectroscopy, especially for probing subtle stereochemical questions in complicated systems. This is especially true in five membered ring compounds where IH NMR is at a particular disadvantage. The two techniques can be used independently to solve the same question-that of stereochemistry - but they do so in different ways. Advantage can be taken in IH NMR of a relatively consistent relationship between stereochemical orientation and coupling constants between vicinal protons, while in 13C NMR it is the correlation between spatial relationships of non-hydrogen, y substituents and their effect on chemical shift that can be used to assign stereochemistry. It was also clear that the use of 13C NMR required a different approach to problem solving than that typically used with IH NMR. While the latter technique could be employed with a very general approach (e.g., the Karplus equation), 13C NMR would, at least for the immediate future, require a relatively extensive set of model systems from which the consequences of stereochemical changes could be derived for any given carbon framework.
Carbon 13 Nmr Chemical Shifts In Structural And Stereochemical Analysis
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Author : Kalevi Pihlaja
language : en
Publisher: Wiley-Interscience
Release Date : 1994-10-13
Carbon 13 Nmr Chemical Shifts In Structural And Stereochemical Analysis written by Kalevi Pihlaja and has been published by Wiley-Interscience this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994-10-13 with Science categories.
The book concentrates in illustrating the applications of C-13 chemical shifts to structural and stereochemical analysis of a variety of organic, oranometallic and bio-organic compounds including dynamic NMR, the experimental conditions to determine and various multidimensional methods to assign the C-13 chemical shifts. First time a chemist who wants to employ C-NMR for solving a structural problem will find practically all necessary fundamental advice within the same covers. The book is a new volume in the successful series 'Methods in Stereochemical Analysis' and is geared towards scientists and students. It is limited mainly to alicyclic chemistry in order to make the explanations transparent and understandable to readers.
Stereochemical Applications Of Nmr Studies In Rigid Bicyclic Systems
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Author : Alan P. Marchand
language : en
Publisher: Wiley-VCH
Release Date : 1982
Stereochemical Applications Of Nmr Studies In Rigid Bicyclic Systems written by Alan P. Marchand and has been published by Wiley-VCH this book supported file pdf, txt, epub, kindle and other format this book has been release on 1982 with Science categories.
The Chemistry Of Cyclobutanes
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Author : Zvi Rappoport
language : en
Publisher: John Wiley & Sons
Release Date : 2005-07-08
The Chemistry Of Cyclobutanes written by Zvi Rappoport and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005-07-08 with Science categories.
The Chemistry of Cyclobutanes provides an in depth and comprehensive review of cyclobutanes and includes chapters on the theoretical and computational foundations; on analytical and spectroscopical aspects with dedicated chapters on Mass Spectrometry, NMR and IR/UV. There are also extensive application examples enabling the reader to collect both a theoretical and practical understanding. The Chemistry of Functional Groups Series was originally founded by Saul Patai (1918-1998) and in the 39 years of publishing has produced more than 100 volumes, providing outstanding reviews on all aspects of functional groups including analytical, physical and synthetic and applied chemistry. Saul Patai has been helped by outstanding editors, especially Zvi Rappoport who has now taken responsibility for the series to continue the tradition of producing high quality reviews with editors such as Y. Apeloig, I. Marek and J. Liebman.
Carbon 13 Nmr Chemical Shifts In Structural And Stereochemical Analysis
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Author : Kalevi Pihlaja
language : en
Publisher: VCH Publishers
Release Date : 1994
Carbon 13 Nmr Chemical Shifts In Structural And Stereochemical Analysis written by Kalevi Pihlaja and has been published by VCH Publishers this book supported file pdf, txt, epub, kindle and other format this book has been release on 1994 with Science categories.
A review of recent research on strategies and applications of the C-13 chemical shift, a method for determining configuration of organic compounds. Introduces C-13 NMR spectroscopy, and describes conditions for collecting the FID, for data handling, and for obtaining a well- resolved C-13 NMR spectrum, as well as various substituent effect correlations, their derivations, and the origin of the effects. Also discusses the use of multidimensional NMR methods. For organic, physical, and natural products chemists. Includes bandw diagrams. Annotation copyright by Book News, Inc., Portland, OR
Tables Of Spectral Data For Structure Determination Of Organic Compounds
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Author : Ernö Pretsch
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Tables Of Spectral Data For Structure Determination Of Organic Compounds written by Ernö Pretsch and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-09 with Science categories.
Although numerical data are, in principle, universal, the compilations presented in this book are extensively annotated and interleaved with text. This translation of the second German edition has been prepared to facilitate the use of this work, with all its valuable detail, by the large community of English-speaking scientists. Translation has also provided an opportunity to correct and revise the text, and to update the nomenclature. Fortunately, spectroscopic data and their relationship with structure do not change much with time so one can predict that this book will, for a long period of time, continue to be very useful to organic chemists involved in the identification of organic compounds or the elucidation of their structure. Klaus Biemann Cambridge, MA, April 1983 Preface to the First German Edition Making use of the information provided by various spectroscopic tech niques has become a ·matter of routine for the analytically oriented organic chemist. Those who have graduated recently received extensive training in these techniques as part of the curriculum while their older colleagues learned to use these methods by necessity. One can, therefore, assume that chemists are well versed in the proper choice of the methods suitable for the solution of a particular problem and to translate the experimental data into structural information.
March S Advanced Organic Chemistry
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Author : Michael B. Smith
language : en
Publisher: John Wiley & Sons
Release Date : 2020-02-19
March S Advanced Organic Chemistry written by Michael B. Smith and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-02-19 with Science categories.
The completely revised and updated, definitive resource for students and professionals in organic chemistry The revised and updated 8th edition of March's Advanced Organic Chemistry: Reactions, Mechanisms, and Structure explains the theories of organic chemistry with examples and reactions. This book is the most comprehensive resource about organic chemistry available. Readers are guided on the planning and execution of multi-step synthetic reactions, with detailed descriptions of all the reactions The opening chapters of March's Advanced Organic Chemistry, 8th Edition deal with the structure of organic compounds and discuss important organic chemistry bonds, fundamental principles of conformation, and stereochemistry of organic molecules, and reactive intermediates in organic chemistry. Further coverage concerns general principles of mechanism in organic chemistry, including acids and bases, photochemistry, sonochemistry and microwave irradiation. The relationship between structure and reactivity is also covered. The final chapters cover the nature and scope of organic reactions and their mechanisms. This edition: Provides revised examples and citations that reflect advances in areas of organic chemistry published between 2011 and 2017 Includes appendices on the literature of organic chemistry and the classification of reactions according to the compounds prepared Instructs the reader on preparing and conducting multi-step synthetic reactions, and provides complete descriptions of each reaction The 8th edition of March's Advanced Organic Chemistry proves once again that it is a must-have desktop reference and textbook for every student and professional working in organic chemistry or related fields. Winner of the Textbook & Acadmic Authors Association 2021 McGuffey Longevity Award.
Nuclear Magnetic Shieldings And Molecular Structure
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Author : J. A. Tossell
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06
Nuclear Magnetic Shieldings And Molecular Structure written by J. A. Tossell and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.
Modern approaches to the theoretical computation and experimental determination of NMR shielding tensors are described in twenty-nine papers based on lectures presented at the NATO ARW. All of the most popular computational methods are reviewed and recent progress is described in their application to chemical, biochemical, geochemical and materials science problems. Experimental studies on NMR shieldings in gases, liquids and solids are also included, with special emphasis placed upon the relationship between NMR shielding and geometric structure and upon tests of the accuracy of the various computational methods. Qualitative MO schemes and semiempirical approaches are also considered in light of the computational results. This is a valuable book for anyone interested in how the NMR shielding tensor can be used to determine the geometric and electronic structures of molecules and solids. (abstract) Modern methods for computing and measuring nuclear magnetic resonance shielding tensors are described in papers by a great number of leaders in the field. The most popular methods for quantum mechanically calculating NMR shielding tensors are reviewed and many applications of these methods are described to problems in chemistry, biochemistry, geochemistry and materials science. The focus of the papers is on the relationship of the NMR shielding tensor to the geometric and electronic structure of molecules or solids.
Advances In Carbohydrate Chemistry And Biochemistry
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Author :
language : en
Publisher: Academic Press
Release Date : 2009-06-06
Advances In Carbohydrate Chemistry And Biochemistry written by and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009-06-06 with Science categories.
Since its inception in 1945, this serial has provided critical and integrating articles written by research specialists that integrate industrial, analytical, and technological aspects of biochemistry, organic chemistry, and instrumentation methodology in the study of carbohydrates. The articles provide a definitive interpretation of the current status and future trends in carbohydrate chemistry and biochemistry.