Ethyl-2-butenoate

Abstract

For the last fifty years nuclear magnetic resonance spectroscopy, generally referred as NMR, is one of the most versatile techniques for elucidation of structure of organic compounds. Among all available spectrometric methods, NMR is the only technique which offers a complete analysis and interpretation of the entire spectrum. Due to improved experimental technology and novel approaches, over the last decade nuclear magnetic resonance (NMR) has shown a tremendous progress. Generally, NMR spectroscopy makes use of three approaches; those are one dimension (1D), two dimensions (2D) and three dimensions (3D). Usually, the first approach of 1D-NMR (1H DEPT, 13C, 15N, 19F, 31P, etc.) generates good information about the structure of simple organic compounds, but in case of larger molecules the 1D-NMR spectra are generally overcrowded. Hence, the second approach of 2D-NMR (COSY, DQFCOSY, MQFCOSY, HETCOR, HSQC, HMQC, HMBC, TOCSY, NOESY, EXSY, etc.) is used for the further larger molecules, but 2D-NMR spectra also becomes complex and overlapping when used for further very large molecules like proteins. Hence, so as to achieve high resolution and reduced overlapping in spectra of very large molecules, Multi Dimensional-NMR (Homonuclear and Heteronuclear) are generally used. This paper supports interpretation of structure of different organic compounds by different NMR techniques.

13C-NMR proton decoupled spectrum of Ethyl-2-butenoate in CDCl3.



DEPT spectrum of Ethyl-2-butenoate.




COSY







https://www.omicsonline.org/structural-elucidation-of-small-organic-molecules-by-1d-2d-and-multi-dimensional-solution-nmr-spectroscopy-2155-9872.S11-001.php?aid=12051&view=mobile
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Structural Elucidation of Small Organic Molecules by 1D, 2D and Multi Dimensional-Solution NMR Spectroscopy

Neeraj Kumar Fuloria* and Shivkanya Fuloria

Anuradha College of Pharmacy, Amravati University, Maharashtra, India

*Corresponding Author:

Dr. Neeraj Kumar Fuloria 
M.Pharm (Pharmaceutical Chemistry)
Head, M.Pharm (Quality Assurance)
Anuradha College of Pharmacy
Chikhli, Buldhana, Maharashtra, India
Tel: 8805680423
E-mail: nfuloria@gmail.com, nfuloria@rediffmail.com

Received date: January 10, 2013; Accepted date: January 30, 2013; Published date: February 07, 2013

Citation: Fuloria NK, Fuloria S (2013) Structural Elucidation of Small Organic Molecules by 1D, 2D and Multi Dimensional-Solution NMR Spectroscopy. J Anal Bioanal Tech S11:001. doi: 10.4172/2155-9872.S11-001

Copyright: © 2013 de Francisco TMG, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.