| C (ppm) | H (ppm) | Type | Integration | Splitting | Comments |
| 202.7 | 9.75 | CH | 0.5 | triplet | This peak is folded in the Hetcor spectrum and observed at 0.7 on the proton axis and 38 on the carbon axis. Carbon and proton shift consistent with aldehyde. Proton splitting shows connected to CH2 |
| 131.6 | none | C | quaternary carbon | ||
| 124.0 | 5.1 | CH | 0.8 | triplet
multiplet |
carbon and proton shift consistent with C=C |
| 50.9 | 2.4
2.3 |
CH2 | 0.9
1.1 |
doublet
doublet doublet |
Complex multiplet and two different sets of peaks indicate that CH2 protons are not equilevent. |
| 36.9 | 1.4 | CH2 | 2.8 | multiplet | |
| 27.7 | 2.1 | CH | ? | multiplet | Peaks at 2.1 and 2.0 overlap, 2.1 shows structure, 2.0 is very broad. total integration is 3.1 This is consistent with CH at 2.1 and CH2 at 2.0 |
| 25.6 | 1.6 | CH3 | 2.5 | doublet | splitting only 1 Hz |
| 25.4 | 2.0 | CH2 | ? | broad | Peaks at 2.1 and 2.0 overlap, 2.1 shows structure, 2.0 is very broad. total integration is 3.1. This is consistent with CH at 2.1 and CH2 at 2.0 |
| 19.8 | 0.9 | CH3 | 3.0 | doublet | |
| 17.6 | 1.7 | CH3 | 2.5 | doublet | splitting only 1 Hz |