Jeediflavanone pentamethyl ether

Jeediflavanone pentamethyl ether

Common Name: Jeediflavanone pentamethyl ether

Synonyms: 4H-​1-​Benzopyran-​4-​one, 8-​[5-​(3,​4-​dihydro-​5-​hydroxy-​7-​methoxy-​4-​oxo-​2H-​1-​benzopyran-​2-​yl)​-​2-​methoxyphenyl]​-​2-​(3,​4-​dimethoxyphenyl)​-​2,​3-​dihydro-​5-​hydroxy-​7-​methoxy-​, [S-​(R*,​R*)​]​- (9CI)

CAS Registry Number: 97640-94-3

InChI:

InChIKey:

Formula: C35H32O11

Molecular Weight: 628.63

Exact Mass: 628.1945

NMR Solvent: CDCl3

MHz: 80.0

Calibration: TMS

NMR references: Murthy, S. (1985). Jeediflavanone-A Biflavonoid From Semecarpus anacardium. Phytochemistry 24, 1065-1069.

Species: synthesis - Murthy, S. (1985). Jeediflavanone-A Biflavonoid From Semecarpus anacardium. Phytochemistry 24, 1065-1069.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
3, 3", cis protons 2.73 dd 3, 17
3, 3", trans protons 3.1 m
2, 2" 5.46 br d 10
6 6.14 d 2
8 6.2 d 2
6" or 8" 6.57 s
2''', 5''', 6''' range 6.86 m
2''', 5''', 6''' range 7.1
2', 5', 6' range 7.18 m
2', 5', 6' range 7.37
7, 4', 7", 3''', 4''' (methoxyl groups) 3.71 s
7, 4', 7", 3''', 4''' (methoxyl groups) 3.75 s
5 (chelated hydroxylic proton) 14.2 s
5" (chelated hydroxylic proton) 14.3 s