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6 edition of Discrimination of Chiral Compounds Using NMR Spectroscopy found in the catalog.

Discrimination of Chiral Compounds Using NMR Spectroscopy

by Thomas J. Wenzel

  • 285 Want to read
  • 10 Currently reading

Published by Wiley-Interscience .
Written in English


The Physical Object
Number of Pages576
ID Numbers
Open LibraryOL7621211M
ISBN 100471763527
ISBN 109780471763529

  The Use of NMR Spectroscopy for Chiral Discrimination Thomas J. Wenzel Department of Chemistry Bates College Lewiston, Maine. “Using NMR Spectroscopic Methods to Determine Enantiomeric Purity and Assign Absolute Stereochemistry,” Wenzel, T.J.; Chisholm, C.D. A chiral derivatizing agent (CDA) also known as a chiral resolving reagent, is a chiral auxiliary used to convert a mixture of enantiomers into diastereomers in order to analyze the quantities of each enantiomer present within the mix. Analysis can be conducted by spectroscopy or by chromatography. The use of chiral derivatizing agents has declined with the popularization of chiral HPLC.

4. 13 C-NMR Chiral Recognition. 13 C-NMR spectroscopy is an indispensable tool for elucidating the structure of organic compounds. Together with 1 H-NMR analysis, 13 C-NMR is a routine task in organic synthesis and the study of natural products. The application of this nucleus is hampered by its low abundance relative to 1 H-, 19 F-, and 31 P-NMR, but currently with modern equipment (hardware. B Determination of Enantiomeric Purity by NMR Spectroscopy. The nmr chemical shifts of nuclei of enantiomeric compounds \(A_+\) and \(A_-\) are identical in achiral solvents. However, in a chiral solvent (enantiomerically pure) \(A_+\) and \(A_-\) will be effectively converted to diastereomers as the result of chiral solvation and.

- Author Affiliations. A QUILL Research Centre, School of Chemistry and Chemical Engineering, The Queen’s University of Belfast, Belfast BT9 5AG, Northern Ireland, UK.. B Department of Chemistry, University of Helsinki, A. I. Virtasen aukio 1, PO FI University of Helsinki, Finland.. C Medicum, PO FI University of Helsinki, Finland. Aggregation of achiral compounds into chiral assemblies Solid-state NMR spectroscopy Tri-O-thymotide clathrates Cholic acid channels Analysis of polymer-bound compounds Library of Congress Subject Headings for this publication: Chemical tests and reagents. Nuclear magnetic resonance spectroscopy.


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Discrimination of Chiral Compounds Using NMR Spectroscopy by Thomas J. Wenzel Download PDF EPUB FB2

In a wider context, an exhaustive report on discrimination of chiral compounds using NMR can be found in a much celebrated book by Wenzel [][][][][] 12 and in a more recent. Download discrimination of chiral compounds using nmr spectroscopy or read online books in PDF, EPUB, Tuebl, and Mobi Format.

Click Download or Read Online button to get discrimination of chiral compounds using nmr spectroscopy book now. This site is like a library, Use search box in the widget to get ebook that you want.

Discrimination Of. An updated guide to the most current information available for determining how to use NMR spectroscopy to differentiate chiral compounds. Differentiation of Chiral Compounds Using NMR Spectroscopy offers a thoroughly revised second edition to the essential volume that puts the focus on the chiral systems that are commercially available and have been widely vetted for use in NMR by: 2.

A comprehensive overview of the use of NMR spectroscopy for chiral discrimination Discrimination of Chiral Compounds Using NMR Spectroscopy concisely covers the broad array of reagents that make it possible to determine the optical purity and assign the absolute configuration of many classes of compounds.

It describes chiral NMR derivatizing agents, solvating agents, metal. A comprehensive overview of the use of NMR spectroscopy for chiral discrimination Discrimination of Chiral Compounds Using NMR Spectroscopy concisely covers the broad array of reagents that make it possible to determine the optical purity and assign the absolute configuration of many classes of compounds.

It describes chiral NMR derivatizing agents, solvating agents, metal Author: Thomas J. Wenzel. An illustration of an open book. Books. An illustration of two cells of a film strip.

Video An illustration of an audio speaker. Discrimination of chiral compounds using NMR spectroscopy Item Preview Discrimination of chiral compounds using NMR spectroscopy by Wenzel, Thomas J.

Publication date Pages:   Differentiation of Chiral Compounds Using NMR Spectroscopy offers a thoroughly revised second edition to the essential volume that puts the focus on the chiral systems that are commercially available and have been widely vetted for use in NMR spectroscopy.

The text covers a broad range of reagents that make it possible to determine the. RETURN TO ISSUE PREV Book Review NEXT Discrimination of Chiral Compounds Using NMR Spectroscopy By Thomas J. Wenzel. John Wiley & Sons, Inc., Hoboken, NJ.

xxii + pp. 16 × 24 cm. ISBN $ 1 H NMR spectroscopy is often used to discriminate enantiomers of chiral analytes and determine their enantiomeric excess (ee) by various chiral auxiliaries.

In reported research, these studies were mainly focused on chiral discrimination of chiral analytes with only one chiral center. However, many chiral compounds possessing two or more chiral centers are often found in natural products. We have recently predicted that can be measurable at room temperature in chiral paramagnetic molecules, and identified strong magnetic anistropy (as featured e.g.

in lanthanide complexes) as a crucial molecular property to achieve room temperature chiral discrimination using NMR spectroscopy. Get this from a library.

Discrimination of chiral compounds using NMR spectroscopy. [Thomas J Wenzel] -- Providing NMR methods for determination of molecular chirality, this book focuses on commercially available systems. Wenzel catalogs the range of compounds. - Discrimination of Chiral Compounds Using NMR Spectroscopy de Wenzel, Thomas J.

Ha buscado: ISBN: Use of axially chiral 2′‐methoxy‐1,1′‐binaphthyl‐2‐carboxylic acid as chiral derivatizing agent for discrimination of enantiomeric alcohols and amines by 1 H NMR. Bull. Chem. The techniques for chiral recognition in NMR are reviewed with reference to applications primarily in the life sciences.

A number of strategies for chiral discrimination are discussed in detail, including derivatization methods, lanthanide shift reagents, the use of cyclodextrins as chiral shift reagents and the use of chiral auxiliaries.

Differentiation of chiral compounds using NMR spectroscopy Wenzel, Thomas J. Differentiation of Chiral Compounds Using NMR Spectroscopy offers a thoroughly revised second edition to the essential volume that puts the focus on the chiral systems that are commercially available and have been widely vetted for use in NMR spectroscopy.

Discrimination of chiral compounds using NMR spectroscopy. Wenzel, Thomas J. Wiley-Interscience pages $   A new kind of chiral compounds with multiple amino, amido and phenolic hydroxy groups has been synthesized from d-phenylalanine and d-phenylglycine, enantiomeric discriminations of α-hydroxy acids and N-Ts-α-amino acids have been finished in the presence of the above chiral compounds as chiral solvating agents by 1 H NMR spectroscopy.

Chiral discrimination of α-hydroxy acids and N-Ts-α-amino acids induced by tetraaza macrocyclic chiral solvating agents by using 1 H NMR spectroscopy. Organic & Biomolecular Chemistry. Discrimination of Chiral Compounds Using Nmr Spectroscopy by T. Wenzel (Author) ISBN ISBN Why is ISBN important.

ISBN. This bar-code number lets you verify that you're getting exactly the right version or edition of a book. The digit and digit formats both work. NMR discrimination methods that do not use an auxiliary have also been developed31,32,33 although they are considered unusual as self-association between chiral analytes is required in the formation of diastereomeric dimers.

Use of an achiral auxiliary in conjunction with 31 P NMR spectroscopy has also been reported However, in that case an.

Chiral discrimination via nuclear magnetic shielding polarizabilities from NMR spectroscopy: theoretical study of (R a)-1,3-dimethylallene, (2R)methyloxirane, and (2R)-N-methyloxaziridine. Journal of Computational Chemis – A comprehensive overview of the use of NMR spectroscopy for chiral discrimination.

Discrimination of Chiral Compounds Using NMR Spectroscopy concisely covers the broad array of reagents that make it possible to determine the optical purity and assign the absolute configuration of many classes of compounds.The chiral recognition by CDA and chiral solvating agent (CSA) was assessed using ¹H, ⁷⁷Se‐{1H}, and ¹²⁵Te‐{1H} NMR spectroscopy.

A simple model for the assignment of the absolute.