Table 2.
1H and 13C NMR assignments for cryptenol (1) in d 6-DMSO
| position | δC b | δH (J in Hz)a | H2BCa | HMBCa | COSYa |
|---|---|---|---|---|---|
| 1 | 17.8 | 1.71 (d; 6.7) | 2 | 2, 3 | 2, 3 |
| 2 | 128.0 | 5.63 (dq; 15.3, 6.7) | 1, 3 | 1, 4 | 1, 3 |
| 3 | 131.4 | 6.03 (dd; 15.3, 10.7) | 2, 4 | 1, 5 | 1, 2, 4 |
| 4 | 130.0 | 6.11 (dd; 15.3, 10.7) | 5 | 1, 2, 6 | 3, 5, 6 |
| 5 | 132.0 | 5.60 (dd; 15.3, 5.6) | 4, 6 | 3, 6 | 4, 6 |
| 6 | 74.5 | 3.86 (t; 5.6) | 5, 7 | 4, 5, 7, 8 | 4, 5 |
| 7 | 74.5 | 3.89 (t; 5.6) | 6, 8 | 5, 6, 8, 9 | 8, 9 |
| 8 | 136.1 | 5.81 (dd; 15.0, 5.6) | 7, 9 | 7, 10 | 7, 9 |
| 9 | 129.6 | 6.20 (dd; 15.0, 10.4) | 8, 10 | 7 | 7, 8, 10 |
| 10 | 133.3 | 6.27 (dd; 14.9, 10.4) | 9, 11 | 11, 12 | 9/11 |
| 11 | 132.1 | 6.23 (m) | 10 | 10, 12 | 10, 12, 13b |
| 12 | 137.1 | 6.36 (dt; 16.9, 10.1) | 13 | 10 | 11, 13a, 13b |
| 13a | 117.1 | 5.22 (d; 16.9) | 12 | 11, 12 | 10, 12, 13b |
| 13b | 5.07 (d; 10.1) | 12 | 11, 12 | 11, 12, 13a | |
| OH(a) | 4.87 (bs) | ||||
| OH(b) | 3.42 (bs) |
a 600 MHz for 1H NMR, H2BC, HMBC, and COSY
b 125 MHz for 13C NMR