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

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