N
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
226
5 1 H NMR
5.10.5 Sulfonic, Sulfurous, and Sulfuric Acids and Derivatives
1 H Chemical Shifts and Coupling Constants (δ in ppm, J in Hz)
5.10.6 Thiocarboxylate Derivatives
1 H Chemical Shifts and Coupling Constants (δ in ppm, J in Hz)
H 3 C
SCH 3
O
H 3 C
SH
O
3.02
3.91
CH 3 SO 2 N CH 3
CH 3
SO 2
OCH 3
O
S
O
O
O
O
S O
O
2 J gem -10.3
3 J vic
6.7
3 J' vic 6.9
3 J ab 5.9
4 J ac 2.0
3 J bc 2.8
(in DMSO)
Apparently lower δ OH
values in DMSO due to
fast exchange with H 2 O
2.78
2.86
CH 2 SO 2 OH
CH 3
1.42 3.17
11.1
11–12
3.70
7.37
5.07 2.63
7.94
7.85
7.86
8.02
7.60
7.58
7.61
7.62
3.64
3.94
2.41
2.30
2.27
5.09
6.47
2.98
9.56
1.72
3.38
1.65
1.79
7.1
6.9
7.7 6.4
7.84
4.29
4.34
3.25
4.68
2.64
4.49
1.26
1.43
3.97
4.03
7.58
7.4–7.7
7.71
CH 3 SO 2 O CH 3
SO 2
OH
SO 2
Cl
SO 2
NH 2
SO 2
NHCH 3
O
S
O
O
O
O
S
O
O
O
S O
O
O
S
O
O
O
S
O
O
S
HN
S
a
b
c