2,3-dihydroamentoflavone

2,3-dihydroamentoflavone

Common Name: 2,3-dihydroamentoflavone

Synonyms:

CAS Registry Number: 34340-51-7

InChI:

InChIKey:

Formula: C30H20O10

Molecular Weight: 540.48

Exact Mass: 540.1057

NMR Solvent: CD3OD

MHz: 400100.0

Calibration: TMS

NMR references: Zhang, Y., Shi, S., Wang, Y., Huang, K. (2011). Target-guided isolation and purification of antioxidants from Selaginella sinensis by offline coupling of DPPH-HPLC and HSCCC experiments. J. Chromatogr. B 879, 191-196.

Guodong, Z. (2006). Natural Products from Selaginella. M.S. Dissertation, National University of Singapore.

Anhut, S., Seeger, T., Zinsmeister, H., Geiger, H. (1989). New Dihydrobiflavones from the Moss Plagiomnium cuspidatum. Z. Naturforsch. 44c, 189-192.

Markham, K., Sheppard, C., Geiger, H. (1987). 13C NMR Studies of Some Naturally Occurring Amentoflavone and Hinokiflavone Biflavonoids. Phytochemistry 26, 3335-3337.

Markham, K., Franke, A., Molloy, B., Webby, R. (1990). Flavonoid Profiles of New Zealand Libocedrus And Related Genera. Phytochemistry 29, 501-507.

Species: Selaginella sinensis - Zhang, Y., Shi, S., Wang, Y., Huang, K. (2011). Target-guided isolation and purification of antioxidants from Selaginella sinensis by offline coupling of DPPH-HPLC and HSCCC experiments. J. Chromatogr. B 879, 191-196.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 5.42 dd 2.6, 13
3 3.2 dd 13, 16
3 2.75 dd 5.6, 16
6 5.91 d 2
8 5.87 d 2
2' 7.44 d 2
5' 7.06 d 8.5
6' 7.46 dd 2, 8.5
3" 6.58 s
6" 6.35 s
2''' 7.57 d 8
3''' 6.79 d 8
5''' 6.79 d 8
6''' 7.57 d 8

Carbon NMR Peaks

Position PPM
2 80.8
3 44.1
4 197.9
5 165.5
6 97.2
7 168.7
8 96.4
9 157.3
10 103.4
1' 131.1
2' 128.7
3' 121.1
4' 157.4
5' 117.2
6' 132.6
2" 166
3" 103.3
4" 184.3
5" 162.4
6" 100.5
7" 164.9
8" 106.8
9" 156.5
10" 105.2
1''' 123.4
2''', 6''' 129.5
3''', 5''' 116.9
4''' 162.7