N
X
C
O
N
S
Hal
Solvents
Natural
Products
P Si
C
C
C C
C
C
144
4 13 C NMR
4.11.6 Miscellaneous Carbonyl Derivatives
13 C Chemical Shifts of Carboxylic Acid Halides (δ in ppm)
13 C Chemical Shifts of Carboxylic Acid Anhydrides (δ in ppm)
H 3 C
O
CH 3
O
O
H 3 C
I
O
H 3 C
Br
O
H 3 C
Cl
O
H 3 C
F
O
O
O
O
O
O
O
O
O
O
Cl 3 C
O
CCl 3
O
O
F 3 C
O
CF 3
O
O
O
O
O
O
O
O
O
O
O
O
O
O
Cl
O
Cl
O
Cl
O
Cl
O
161.0
170.4
165.7
156.1
33.6
39.1
47.3
41.0
27.4
37.2
18.2
13.4
35.2
40.2
22.1
9.3
8.5
131.4
137.3
168.0
162.4
131.2
130.5
128.8
128.9
135.1
134.5
133.2
128.9
55.4
25.5
25.9
29.7
176.3
174.7
170.9
169.6
150.1
154.0
113.5
172.5
165.9
125.3
136.1
131.1
137.4
168.5
163.1
87.9
28.2
30.1
16.7
1 J CF 285 Hz
2 J CF 48 Hz
172.8
173.9
166.6
158.5
165.6
H
O
H
O
O
O
O
O
O
O
O
18.3
26.5