*19. Following are the NMR spectra of three isomeric esters with the formula C,H1402, all derivedfrom propanoic acid. Provide a structure for each.1Η ΝMRC,H1¾O2300 MHz2.001.951.90 185uuluuluululuuluululuuluwlle1.971.921.042,895.853.53.02.5201.51.0(а)C,H14O2'H NMR300 МHz1.988,602.97(b)1Η ΝMRC,H1,02300 MHz1.331.301.311.351.871.944.02.01.51.00.5(c)

First we have to calculate the double bond equivalence (DBE) of the moleculer formula C7H14O2 by…

Answered: *19. Following are the NMR spectra of…

*19. Following are the NMR spectra of three isomeric esters with the formula C;H14O2, all derived from propanoic acid. Provide a structure for each.

Macroscale and Microscale Organic Experiments

7th Edition

ISBN:9781305577190

Author:Kenneth L. Williamson, Katherine M. Masters

Publisher:Kenneth L. Williamson, Katherine M. Masters

Chapter13: Mass Spectrometry

Section: Chapter Questions

Problem 3Q

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Concept explainers

NMR Spectroscopy

NMR stands for Nuclear Magnetic Resonance in which the study of different molecules is done based on the interaction of radiofrequency electromagnetic radiations with the nuclei of molecules placed in a strong magnetic field. A precise study of spectra of visible light and all bands of electromagnetic radiation is called spectroscopy.

Question

*19. Following are the NMR spectra of three isomeric esters with the formula C,H1402, all derived
from propanoic acid. Provide a structure for each.
1Η ΝMR
C,H1¾O2
300 MHz
2.00
1.95
1.90 185
uuluuluululuuluululuulu
wlle
1.97
1.92
1.04
2,89
5.85
3.5
3.0
2.5
20
1.5
1.0
(а)
C,H14O2
'H NMR
300 МHz
1.98
8,60
2.97
(b)
1Η ΝMR
C,H1,02
300 MHz
1.33
1.30
1.31
1.35
1.87
1.94
4.0
2.0
1.5
1.0
0.5
(c)

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