The H-NMR spectrum for the product shows two doublets at 7.09 ppm and 7.75 ppm, with equal integration. Given the assignments for Ha and Hd in the product shown below, suggest a reason why the doublet due to Hd is at larger chemical shift than the doublet due to Ha. You should draw a resonance form to show how the carbonyl can withdraw electron density from the alkene. HD Hb
The H-NMR spectrum for the product shows two doublets at 7.09 ppm and 7.75 ppm, with equal integration. Given the assignments for Ha and Hd in the product shown below, suggest a reason why the doublet due to Hd is at larger chemical shift than the doublet due to Ha. You should draw a resonance form to show how the carbonyl can withdraw electron density from the alkene. HD Hb
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:(C)
The H-NMR spectrum for the product shows two doublets at 7.09 ppm and 7.75 ppm, with
equal integration. Given the assignments for Ha and Hd in the product shown below, suggest a
reason why the doublet due to Hd is at larger chemical shift than the doublet due to Ha. You
should draw a resonance form to show how the carbonyl can withdraw electron density from
the alkene.
35945
Type response here

Transcribed Image Text:2
NMR dibenzalacetone
(expanded)
8.0
2
2
NMR dibenzalacetone
Ignore this peak
6
Ignore this peak
2
2
Ignore this peak
PPM
ppm
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