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The NMR spectra for compound 1 were acquired in a 7.5 mg / 0.6 mL solution of CDCl3 . The 1H and 13C peaks are also listed below. Provide a full analysis of the NMR spectra for compound 1.  correct assignment of NMR spectra of both 13C spectra.   correct rationalisation of 13C spectrum 1H NMR (400 MHz, CDCl3) δ 7.73 (d, J = 9.5 Hz, 1H), 7.56 (ddd, J = 8.5, 7.5, 1.6 Hz, 1H), 7.51 (dd, J = 7.5, 1.6 Hz, 1H), 7.36 (d, J = 8.5 Hz, 1H), 7.30 (dd, J = 8.5, 7.5 Hz, 1H), 6.45 (d, J = 9.5 Hz, 1H). 13C NMR (101 MHz, CDCl3) δ 160.79, 154.09, 143.43, 131.85, 127.87, 124.44, 118.86, 116.94, 116.74. Note: There are two carbon peaks in the 13C spectrum that are so close together that they are not differentiable at the resolution in this experiment.  you should be able to assign these peaks to one of two carbon atoms in 1.

The NMR spectra for compound 1 were acquired in a 7.5 mg / 0.6 mL solution of CDCl3 . The 1H and 13C peaks are also listed below. Provide a full analysis of the NMR spectra for compound 1.  correct assignment of NMR spectra of both 13C spectra.   correct rationalisation of 13C spectrum 1H NMR (400 MHz, CDCl3) δ 7.73 (d, J = 9.5 Hz, 1H), 7.56 (ddd, J = 8.5, 7.5, 1.6 Hz, 1H), 7.51 (dd, J = 7.5, 1.6 Hz, 1H), 7.36 (d, J = 8.5 Hz, 1H), 7.30 (dd, J = 8.5, 7.5 Hz, 1H), 6.45 (d, J = 9.5 Hz, 1H). 13C NMR (101 MHz, CDCl3) δ 160.79, 154.09, 143.43, 131.85, 127.87, 124.44, 118.86, 116.94, 116.74. Note: There are two carbon peaks in the 13C spectrum that are so close together that they are not differentiable at the resolution in this experiment.  you should be able to assign these peaks to one of two carbon atoms in 1.

Pushing Electrons
Pushing Electrons
4th Edition
ISBN:9781133951889
Author:Weeks, Daniel P.
Publisher:Weeks, Daniel P.
Chapter6: Valence Electrons (redux)
Section: Chapter Questions
Problem 1EQ
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The NMR spectra for compound 1 were acquired in a 7.5 mg / 0.6 mL solution of
CDCl3 . The 1H and 13C peaks are also listed
below. Provide a full analysis of the NMR spectra for compound 1.
 correct assignment of NMR spectra of both 13C spectra. 
 correct rationalisation of 13C spectrum
1H NMR (400 MHz, CDCl3) δ 7.73 (d, J = 9.5 Hz, 1H), 7.56 (ddd, J = 8.5, 7.5, 1.6 Hz, 1H),
7.51 (dd, J = 7.5, 1.6 Hz, 1H), 7.36 (d, J = 8.5 Hz, 1H), 7.30 (dd, J = 8.5, 7.5 Hz, 1H), 6.45
(d, J = 9.5 Hz, 1H).
13C NMR (101 MHz, CDCl3) δ 160.79, 154.09, 143.43, 131.85, 127.87, 124.44, 118.86,
116.94, 116.74.
Note: There are two carbon peaks in the 13C spectrum that are so close together that they are not differentiable at the resolution in this experiment.  you should be able to assign these peaks to one of two carbon atoms in 1.

1
Transcribed Image Text:1
13C spectrum ➡160.79 -154.09 1 164 162 160 158 156 154 152 150 -143.43 148 146 144 142 140 138 136 f1 (ppm) 134 131.85 132 127.87 12444 -118.86 116.94 -116.74 130 128 126 124 122 120 118 116 114 1400 1300 1200 1100 -1000 --900 -800 -700 --600 --500 --400 -300 -200 100 -0 -100
Transcribed Image Text:13C spectrum ➡160.79 -154.09 1 164 162 160 158 156 154 152 150 -143.43 148 146 144 142 140 138 136 f1 (ppm) 134 131.85 132 127.87 12444 -118.86 116.94 -116.74 130 128 126 124 122 120 118 116 114 1400 1300 1200 1100 -1000 --900 -800 -700 --600 --500 --400 -300 -200 100 -0 -100
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