N
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
156
4 13 C NMR
156
4 13 C NMR
Fructose
13 C- 1 H Coupling Constants through One Bond ( 1 J CH in Hz)
O
13
C
OR
H
O
HO
HO
OH
OH
OH
O
OH OH
OH
HO
HO
O
HO
OH
OH
HO
OH
O
AcO
OAc
OAc
AcO
OAc
O
AcO
OAc
OAc
OAc
AcO
89.2
91.8
70.0
72.8
69.4
71.3
traces in water and in DMSO
75% in water, 25% in DMSO
21% in water, 55% in DMSO
4% in water, 20% in DMSO
1 J CH 169–171
1 J CH 158–162
70.5
68.1
69.4
61.1
61.7
70.0
72.8
O
HO
HO
OH
OH
OH
70.9
65.9
61.9
82.2
105.5
102.6
77.0
82.9
63.8
63.6
63.2
81.6
75.4
76.4
70.0
64.1
64.7
99.1
68.4
70.5
O
13
C
H
OR