香豆素(Coumarin)
表 香豆素(Coumarin)的氫、碳化學位移(CDCl3)a
|
position
|
.jpg) H (600 MHz)
|
C (150 MHz)
|
|
2
|
|
160.8
|
|
3
|
6.40 (d, 9.6 )
|
116.7
|
|
4
|
7.69 (d, 9.6)
|
143.4
|
|
4a
|
|
118.8
|
|
5
|
7.46 (dd, 1.8, 7.8)
|
127.8
|
|
6
|
7.26 (m)
|
124.4
|
|
7
|
7.51 (m)
|
131.8
|
|
8
|
6.70 (br d, 8.4)
|
116.9
|
|
8a
|
|
154.0
|
|
a(Multiplicity, J in Hz) in ppm. |
