N
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
218
5 1 H NMR
1 H Chemical Shifts and Coupling Constants of Cyclic Amines
(δ in ppm, J in Hz)
5.9.2 Nitro and Nitroso Compounds
1 H Chemical Shifts and Coupling Constants (δ in ppm, J in Hz)
NO 2
NO 2
N
+ (CH 3 ) 3 Cl
–
HN
NO 2
δ NH 2
in DMSO: 4.94
δ NH in DMSO: 7.32
(in DMSO)
(neat)
δ NH in DMSO: 5.52
3.61
3.66
2.83
3.70
2.94
6.67
6.61
8.08
6.53
6.59
6.74
7.14
7.18
7.64
8.09
8.09
7.24
6.75
6.70
7.59
2.94
3.10
4.62
6.72
H
N
H
N
H
N
H
N
N
O
H
N
O
N
N
H
N
a
b
1.61
1.41
1.59
2.33
2.23
2.32
2.59
2.86
3.67
2.26
2.37
2.88
1.72
3.62
2.08
3.63
2.33
2.01
2.75
1.59
2.18
2.79
1.53
1.53
0.9
2 J gem ≈1
3 J ab,cis 6.3
3 J ab,trans 3.8
NH 2
HN
N
N
NO 2
a
a
a
b
b
b
c
c
c
d
d
d
e
e
e
3 J ab 8.4
4 J ac 1.0
5 J ad 0.4
4 J ae 2.8
3 J bc 7.3
4 J bd 1.8
3 J ab 8.2
4 J ac 1.1
5 J ad 0.4
4 J ae 2.5
3 J bc 7.3
4 J bd 1.7
3 J ab 8.0
4 J ac 1.1
5 J ad 0.5
4 J ae 2.5
3 J bc 7.4
4 J bd 1.6
CH 3 NO 2
NO 2
NO 2
NO 2
4.34
1.53
1.07 2.07
1.59
1.50 4.47
4.44
1.58
J vic 7.4
2.01
4.43
1.03 4.28