Table 2. Values of J7,8 (Hz) for Compounds 1–6 in CD3OD and CDCl3.
| solvents | 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|
| CD3OD | d, 6.4 | d, 5.9 | d, 5.9 | d, 5.8 | d, 6.3 | d, 5.9 |
| CDCl3 | d, 7.5 | d, 7.3 | d, 6.6 | d, 6.3 | d, 7.1 | d, 7.4 |
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