2'',3''-Dihydroochnaflavone

2'',3''-Dihydroochnaflavone

Common Name: 2'',3''-Dihydroochnaflavone

Synonyms: 4H-​1-​Benzopyran-​4-​one, 2-​[4-​[5-​(5,​7-​dihydroxy-​4-​oxo-​4H-​1-​benzopyran-​2-​yl)​-​2-​hydroxyphenoxy]​phenyl]​-​2,​3-​dihydro-​5,​7-​dihydroxy-​, (2S)​-

CAS Registry Number: 340997-02-6

InChI:

InChIKey:

Formula: C30H20O10

Molecular Weight: 540.48

Exact Mass: 540.1057

NMR Solvent: CD3OD

MHz: 500 (1H), 125 (13C)

Calibration: TMS

NMR references: de Oliveira, M., de Carvalho, M., da Silva, C., Werle, A. (2002). New Biflavonoid and Other Constituents from Luxemburgia nobilis (EICHL). J. Braz. Chem. Soc. 13, 119-123.

Species: Luxemburgia nobilis - de Oliveira, M., de Carvalho, M., da Silva, C., Werle, A. (2002). New Biflavonoid and Other Constituents from Luxemburgia nobilis (EICHL). J. Braz. Chem. Soc. 13, 119-123.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3 6.62 s
5-OH 12.71 s
6 6.11 d 2
8 6.37 d 2
2' 7.62 d 7.8
5' 7.06 d 7
6' 7.71 dd 7.8, 2
2" 5.39 dd 6, 12.7
3" 3.11 dd 12.7, 16.6
3'' 2.66 brd 16.6
5"-OH 11.99 s
6" 5.81 d 2
8" 5.82 d 2
2''', 6''' 7.36 d 7.8
3''', 5''' 6.83 d 7.8

Carbon NMR Peaks

Position PPM
2 163.94
3 103.91
4 182.22
5 161.8
6 99.51
7 164.66
8 94.64
9 157.82
10 104.29
1' 122.72
2' 121.22
3' 142.88
4' 153.84
5' 118.41
6' 125.35
2" 78.57
3" 42.38
4" 196.48
5" 163.45
6" 96.58
7" 167.14
8" 95.62
9" 163.28
10" 102.3
1''' 132.77
2''', 6''' 128.8
3''', 5''' 116.3
4''' 158.45