COSY and HETCOR spectra Of
1. Ipsenol
1.1 COSY spectrum of ipsenol
chemical shift (ppm)
|
indicated protons
|
correlations
|
6.35
|
olefinic
|
coupled to olefinic protons at d 5.08 ppm
|
5.08 (group)
|
olefinic
|
coupled to olefinic protons at d 5.35 ppm and methylene protons at d2.22 and 2.48 ppm
|
3.83
|
carbinol methine
|
coupled to 4 protons corresponding to 2 adjacent methylene groups
|
2.48
|
methylene
|
coupled to carbinol methine proton and each other
|
2.22
|
methylene
| |
1.82
|
isopropyl methine
|
coupled to 3 protons corresponding to 2 adjacent metnylene groups
|
1.80
|
hydroxylic
|
-
|
1.49
|
methylene
|
coupled to carbinol methine proton and each other
|
1.26
|
methylene
| |
0.93
|
2 overlaping methyl doublets
|
coupled to isopropyl methine proton
|
1.2 HETCOR spectrum of ipsenol
13C chemical shift (ppm)
|
1H chemical shift (ppm)
|
indicated part of structure
|
143
|
-
|
olefinic (quarternary C)
|
138
|
6.35
|
olefinic
|
117, 119
|
5.08, 5.15
|
olefinic
|
117
|
5.24, 5.26
|
olefinic
|
69
|
3.83
|
carbinol methine
|
41
|
2.48, 2.22
|
methylene
|
25
|
1.82
|
isopropyl methine
|
-
|
1.80
|
hydroxylic
|
47
|
1.26, 1.49
|
methylene
|
22, 24
|
0.93
|
2 overlaping methyl doublets
|
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