N
X
C
Hal
O
N
S
P Si
Natural
Products
Solvents
C
C
C
C C
C
4.1 Alkanes
79
13 C Chemical Shifts of Monosubstituted Alkanes (δ in ppm, contd.)
2-Propyl
tert-Butyl
–CH –CH 3
–C
–CH 3
–H
15.9
15.4
25.0
24.1
–CH=CH 2
32.3
22.1
33.8
29.4
–C– – – CH
20.3
22.8
27.4
31.1
–phenyl
34.3
24.0
34.6
31.4
–F
87.3
22.6
93.5
28.3
–Cl
53.7
27.3
66.7
34.6
–Br
44.8
28.5
62.1
36.4
–I
20.9
31.2
43.0
40.4
–OH
64.0
25.3
68.9
31.2
–OCH 3
72.6
21.4
72.7
27.0
–OCH 2 CH 3
71.1
22.4
72.6
27.7
–OCH(CH 3 ) 2
68.5
23.0
73.0
28.5
–OC(CH 3 ) 3
63.5
25.2
76.3
33.8
–O–phenyl
69.3
22.0
–OCOCH 3
67.5
21.9
79.9
28.1
–OCO–phenyl
68.2
21.9
80.7
28.2
–NH 2
43.0
26.5
47.2
32.9
–NHCH 3
50.5
22.5
50.4
28.2
–N(CH 3 ) 2
55.5
18.7
53.6
25.4
–NHCOCH 3
40.5
22.3
49.9
28.6
–NO 2
78.8
20.8
85.2
26.9
–C– – – N
19.8
19.9
28.1
28.5
–NC
45.5
23.4
54.0
30.7
–SH
29.9
27.4
41.1
35.0
–SCH 2 CH 3
34.4
23.4
–S(O) 2 CH 3
53.5
15.2
57.6
22.7
–S(O) 2 Cl
67.6
17.1
74.2
24.5
–S(O) 2 OH
52.9
16.8
55.9
25.0
–CHO
41.1
15.5
42.4
23.4
–COCH 3
41.6
18.2
44.3
26.5
–CO–phenyl
35.2
19.1
43.5
27.9
–COOH
34.1
18.8
38.7
27.1
–COOCH 3
34.1
19.1
38.7
27.3
–CONH 2
34.9
19.5
38.6
27.6
–COCl
46.5
19.0
49.4
27.1
C
X
O
N
S
O
||
C