Genkwanol hexamethyl ether

Genkwanol hexamethyl ether

Common Name: Genkwanol hexamethyl ether

Synonyms:

CAS Registry Number: 142674-71-3

InChI:

InChIKey:

Formula: C36H34O11

Molecular Weight: 642.657

Exact Mass: 642.2101

NMR Solvent: CDCl3

MHz: 300 (1H), 75.4 (13C)

Calibration: TMS

NMR references: Baba, K., Taniguchi, M., Kozawa, M. (1992) A Spirobiflavonoid Genkwanol B from Daphne Genkwa. Phytochemistry 31, 975-980.

Species: synthesis from Genkwanol B - Baba, K., Taniguchi, M., Kozawa, M. (1992) A Spirobiflavonoid Genkwanol B from Daphne Genkwa. Phytochemistry 31, 975-980.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2 4.93 d 5.1
3 3.51 dt 5.1, 4.5
4 2.52 d 4.4
6 5.85 s
2', 6' 6.88 d 8.8
3', 5' 6.72 d 8.8
2" 5.91 s
6" 6.13 d 2.2
8" 6.17 d 2.2
2''', 6''' 7.19 d 8.8
3''', 5''' 6.86 d 8.8
OCH3 3.85 s
OCH3 3.82 s
OCH3 3.79 s
OCH3 3.77 s
OCH3 3.43 s
OCH3 3.2 s

Carbon NMR Peaks

Position PPM
2 79.81
3 75.78
4 21.22
10 110.25
5 187.49
6 102.38
7 169.3
8 84.95
9 157.9
1' 130
2', 6' 127.51
3', 5' 114.03
4' 159.9
2" 91.09
3" 86.15
4" 183.25
10'' 105.36
5" 163.26
6" 94.36
7" 167.06
8" 94.51
9'' 162.82
1''' 124.47
2''', 6''' 130
3''', 5''' 113.85
4''' 160.69
3-OCH3 56.91
OCH3 56.56
3"-OCH3 56.07
5"-OCH3 55.73
7"-OCH3 55.52
OCH3 55.47