Tetrahydrohinokiflavone

Tetrahydrohinokiflavone

Common Name: Tetrahydrohinokiflavone

Synonyms: 2,2",3,3"-Tetrahydrohinokiflavone

CAS Registry Number: 202325-62-0

InChI:

InChIKey:

Formula: C30H22O10

Molecular Weight: 542.496

Exact Mass: 542.1213

NMR Solvent: acetone-d6

MHz: 300.13 (1H), 75.43 (13C)

Calibration: TMS

NMR references: Rani, M., Rao, C., Gunasekar, D., Blond, A., Bodo, B. (1998). A Biflavonoid from Cycas beddomei. Phytochemistry 47, 319-321.

Species: Cycas beddomei - Rani, M., Rao, C., Gunasekar, D., Blond, A., Bodo, B. (1998). A Biflavonoid from Cycas beddomei. Phytochemistry 47, 319-321.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2, 2" 5.51 dd 13, 2.8
3 trans 3.18 dd 17.1, 13
3 cis 2.72 dd 17.1, 2.8
5-OH 12.15 s
6 5.94 d 2.2
7-OH 10.3 s
8 5.96 d 2.2
2', 6' 7.47 d 9
3', 5' 6.94 d 9
3" trans 3.24 dd 17.1, 13
3" cis 2.77 dd 17.1, 2.8
5"-OH 12.29 s
7"-OH 10.1 s
8" 6.15 s
2''', 6''' 7.42 d 9
3''', 5''' 6.91 d 9
4'''-OH 9 s

Carbon NMR Peaks

Position PPM
2 79.6
3 (may be interchanged with II-3) 43.4
4 197
10 103.2
5 165.2
6 96.9
7 167.3
8 95.9
9 164.2
1' 133.2
2' 128.8
3' 115.7
4' 159.3
5' 115.7
6' 128.8
2'' 80.2
3'' (may be interchanged with I-3) 43.5
4'' 198.1
10'' 103.4
5'' 156.7
6'' 124
7'' 160.1
8'' 96.2
9'' 160.8
1''' 130.6
2''' 129.6
3''' 116.2
4''' 158.7
5''' 116.2
6''' 129.6