Exercise plus Solution Quick overview
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1.52.02.53.03.54.04.55.05.5
ppm
1
H
4.28
2.12
2.02
2.08
1.96
1.00
Inte-
gral
Deduce the structure without taking care
about the coupling patterns in the proton
spectrum!
C
7
H
13
Br measured in CDCl
3
1
H NMR spectrum
measured at 250.13 MHz
30405060708090100110120130
ppm
13
C
2728293031323334 ppm
27.64
28.02
32.67
33.51
33.80
27.64
28.02
32.67
33.51
33.80
114.59
138.58
ppm
13
C{
1
H} NMR spectrum
measured at 62.90{250.13} MHz
1.52.02.53.54.04.55.05.5
1
H
ppm
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
5.5
1
H
1
H DQF-COSY
measured at 250.13 MHz
Due to strong overlap of two multiplets overlap, it
is maybe a recommendable idea to start the
analysis of the DQF-COSY coming from two
endpoints of the coupling pathway.
26
27
28
29
30
31
32
33
34
13
C
1.31.41.51.61.81.92.02.12.2
1
H
ppm
1.52.02.53.03.54.55.05.5
1
H
ppm
30
40
50
60
80
90
100
110
120
130
13
C
1
H/
13
C HSQC
measured at 250.13/62.90 MHz
C
C
C
C
C
C
C
H
H
H
H
H
H
H
H
Br
H
H
H
H
H
Solution at a glance
As soon as you see the green footprints on the problem
icon, the step-by-step-solution is available