Spektraris NMR
2,3-dihydro-5'-hydroxyamentoflavone
Common Name: 2,3-dihydro-5'-hydroxyamentoflavone
Synonyms: 4H-1-Benzopyran-4-one, 8-[5-(3,4-dihydro-5,7-dihydroxy-4-oxo-2H-1-benzopyran-2-yl)-2,3-dihydroxyphenyl]-5,7-dihydroxy-2-(4-hydroxyphenyl)-, (S)- (9CI)
CAS Registry Number: 122475-58-5
InChI:
InChIKey:
Formula: C30H20O11
Molecular Weight: 556.479
Exact Mass: 556.1006
NMR Solvent: DMSO-d6
MHz: 400 (1H), 100 (13C)
Calibration: not indicated
NMR references: Anhut, S., Seeger, T., Zinsmeister, H., Geiger, H. (1989). New Dihydrobiflavones from the Moss Plagiomnium cuspidatum. Z. Naturforsch. 44c, 189-192.
Species: Anhut, S., Seeger, T., Zinsmeister, H., Geiger, H. (1989). New Dihydrobiflavones from the Moss Plagiomnium cuspidatum. Z. Naturforsch. 44c, 189-192.
Notes: NMR data collected at 373 K.
Proton NMR Peaks
| Position | PPM | Peak Type | J (Hz) |
|---|---|---|---|
| 2 | 5.46 | dd | 3, 12 |
| 3 | 3.18 | dd | 12, 17 |
| 3 | 2.78 | dd | 3, 17 |
| 6 | 5.91 | d | 2 |
| 8 | 5.92 | d | 2 |
| 2' | 6.87 | d | 2 |
| 6' | 7.04 | d | 2 |
| 3" | 6.65 | s | |
| 6" | 6.4 | s | |
| 2''' | 7.56 | d | 9 |
| 3''' | 6.81 | d | 9 |
| 5''' | 6.81 | d | 9 |
| 6''' | 7.56 | d | 9 |
Carbon NMR Peaks
| Position | PPM |
|---|---|
| 2 | 78.2 |
| 3 | 42.1 |
| 4 | 195.3 |
| 5 | 163.1 |
| 6 | 95.5 |
| 7 | 166.2 |
| 8 | 94.7 |
| 9 | 162.6 |
| 10 | 101.6 |
| 1' | 128.6 |
| 2' | 120.9 |
| 3' | 119.2 |
| 4' | 145.1 |
| 5' | 143.9 |
| 6' | 112.8 |
| 2" | 163.4 |
| 3" | 102.1 |
| 4" | 181.6 |
| 5" | 160.5 |
| 6" | 98.4 |
| 7" | 161.4 |
| 8" | 104.5 |
| 9" | 154.2 |
| 10" | 103.5 |
| 1''' | 121.3 |
| 2''' | 127.7 |
| 3''' | 115.4 |
| 4''' | 160 |
| 5''' | 115.4 |
| 6''' | 127.7 |
