3'-O-methyl loniflavone

3'-O-methyl loniflavone

Common Name: 3'-O-methyl loniflavone

Synonyms: 4H-​1-​Benzopyran-​4-​one, 2-​[4-​[4-​(5,​7-​dihydroxy-​4-​oxo-​4H-​1-​benzopyran-​2-​yl)​-​2-​methoxyphenoxy]​phenyl]​-​5,​7-​dihydroxy-

CAS Registry Number: 871581-07-6

InChI:

InChIKey:

Formula: C31H20O10

Molecular Weight: 552.491

Exact Mass: 552.1057

NMR Solvent: pyridine-d5

MHz: 300.13 (1H), 75.46 (13C)

Calibration: not indicated

NMR references: Kumar, N., Singh, B., Bhandari, P., Gupta, A., Uniyal, S., Kaul, V. (2005). Biflavonoids from Lonicera japonica. Phytochemistry 66, 2740-2744.

Species: Lonicera japonica - Kumar, N., Singh, B., Bhandari, P., Gupta, A., Uniyal, S., Kaul, V. (2005). Biflavonoids from Lonicera japonica. Phytochemistry 66, 2740-2744.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 6.84 s
6 6.65 d 2.4
7-OH 8.67 not indicated
8 6.69 d 2.4
2' 7.95 d 2.3
OCH3 3.66 s
5' 7.16 d 8.8
6' 7.86 dd 8.8, 2.3
3" 6.92 s
5" (OH) 13.23 s
6" 6.65 d 2.4
7" (OH) 8.67
8" 6.69 d 2.4
2''' 7.88 d 8.8
3''' 7.09 d 8.8
5''' 7.09 d 8.8
6''' 7.88 d 8.8

Carbon NMR Peaks

Position PPM
2 162.9
3 104.9
4 182.4
10 104.1
5 162.7
6 99.5
7 165.8
8 94.7
9 158.2
1' 124.7
2' 113.6
3' 154.9
OCH3 55.1
4' 143.3
5' 121.2
6' 125.3
2" 163.3
3" 105.1
4" 182.4
10'' 104.1
5" 162.9
6" 99.5
7" 165.9
8" 94.7
9'' 158.2
1''' 125.3
2''' 128.5
3''' 116.2
4''' 161.3
5''' 116.2
6''' 128.5