a. How many signals does dimethyl fumarate (CH3O2CCH = CHCO2CH3, with a trans C = C) exhibit in its 13C NMR spectrum?b. Draw the structure of an isomer of dimethyl fumarate that has each of the following number of signals in its 13C NMR spectrum: [1] three; [2] four; [5] five.

a. How many signals does dimethyl fumarate (CH3O2CCH = CHCO2CH3, with a trans C = C) exhibit in its 13C NMR spectrum?b. Draw the structure of an isomer of dimethyl fumarate that has each of the following number of signals in its 13C NMR spectrum: [1] three; [2] four; [5] five.

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter13: Structure Determination: Nuclear Magnetic Resonance Spectroscopy

Section13.SE: Something Extra

Problem 65GP: 3-Methyl-2-butanol has five signals in its 13C NMR spectrum at 17.90, 18.15, 20.00, 35.05, and 72.75...

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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.

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a. How many signals does dimethyl fumarate (CH3O2CCH = CHCO2CH3, with a trans C = C) exhibit in its 13C NMR spectrum?
b. Draw the structure of an isomer of dimethyl fumarate that has each of the following number of signals in its 13C NMR spectrum: [1] three; [2] four; [5] five.

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