TABLE 3.
1H (500 MHz) and 13C NMR (125 MHz) data of 5 in methanol-d 4 (δ in ppm, J in Hz).
| No. | δ H | δ C | No. | δ H | δ C |
|---|---|---|---|---|---|
| 1 | 156.6 s | 12 | Ha: 2.23 m | 22.9 t | |
| 2 | 120.8 s | Hb: 2.00 overlap | |||
| 3 | 7.22 d (2.9) | 115.7 d | 13 | 5.14 t-like (6.8) | 124.7 d |
| 4 | 150.7 s | 14 | 136.9 s | ||
| 5 | 7.01 d (8.9, 2.9) | 126.1 d | 15 | 1.62 s | 16.0 q |
| 6 | 6.79 d (8.9) | 119.7 d | 16 | 2.00 overlap | 40.8 a t |
| 7 | 204.8 s | 17 | 2.08 m | 27.7 t | |
| 8 | Ha: 3.54 d (17.3) | 48.4 t | 18 | 5.10 t (7.0) | 125.4 d |
| Hb: 3.45 d (17.3) | 19 | 132.2 s | |||
| 9 | 75.8 s | 20 | 1.67 s | 25.9 q | |
| 10 | 178.6 s | 21 | 1.60 s | 17.8 q | |
| 11 | 1.78 m | 41.0 a t |
a
Signals with the same symbol might be interchangeable.