What 1H NMR spectral data (in ppm) is expected for the compound shown? 3.8 (1H, septet). 2.1 (3H. s), 1.0 (6H. d) O 3.8 (1H. septet), 3.3 (3H. s). 1.0 (6H, d) O 3.3 (3H, s), 2.6 (3H. septet), 1.0 (6H, d) O 2.6 (1H, septet), 2.1 (3H, s), 1.0 (6H, d)

What 1H NMR spectral data (in ppm) is expected for the compound shown? 3.8 (1H, septet). 2.1 (3H. s), 1.0 (6H. d) O 3.8 (1H. septet), 3.3 (3H. s). 1.0 (6H, d) O 3.3 (3H, s), 2.6 (3H. septet), 1.0 (6H, d) O 2.6 (1H, septet), 2.1 (3H, s), 1.0 (6H, d)

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter13: Nuclear Magnetic Resonance Spectroscopy

Section: Chapter Questions

Problem 13.15P: Following are three compounds with the molecular formula C4H8O2 and three 1H-NMR spectra. Assign...

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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

What 1H NMR spectral data (in ppm) is expected for the compound shown?
3.8 (1H, septet). 2.1 (3H. s). 1.0 (6H. d)
O 3.8 (1H. septet), 3.3 (3H. s). 1.0 (6H, d)
O 3.3 (3H, s), 2.6 (3H. septet), 1.0 (6H, d)
O 2.6 (1H, septet), 2.1 (3H, s), 1.0 (6H, d)

OC
What compound exhibits only two signals in its 1H NMR spectrum, a triplet and a quintet?
B

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