Exercise plus Solution – Quick PDF overview
It is recommended to use this PDF version only for a quick overview of the NMR challenge. All animations of the
PowerPoint version are missing, under certain circumstances quality deficiencies may also occur.
The higher quality PowerPoint files are freely available for download at any time.
6.57.07.58.08.59.09.5
ppm
1
H
1.00
1.02
2.08
1.97
1.00
Inte-
gral
~
2069.56
2069.89
2071.69
2072.02
2076.50
2076.82
2078.59
2078.93
Hz
1928.09
1928.58
1930.19
1930.67
1934.99
1935.47
1937.11
1937.61
Hz
2441.77
2449.18
Hz
1690.48
1697.90
1706.57
1713.99
Hz
1874.29
1890.38
1
H NMR spectrum
measured at 250.13 MHz
C
9
H
7
NO
3
measured in CDCl
3
Deduce both constitution and configuration.
6.57.07.58.08.59.09.5
ppm
1
H
~
C C
C
CC
CN
+
-
O
O
C
C C
O
H
H H
H H
H
H
7.42 Hz
16.09 Hz
Solution at a glance
(no step by step solution so far)
6.57.07.58.08.59.09.5
ppm
1
H
~
16.09 Hz
7.42 Hz
