Jeediflavanone

Jeediflavanone

Common Name: Jeediflavanone

Synonyms: 4H-​1-​Benzopyran-​4-​one, 8-​[5-​[(2S)​-​3,​4-​dihydro-​5,​7-​dihydroxy-​4-​oxo-​2H-​1-​benzopyran-​2-​yl]​-​2-​hydroxyphenyl]​-​2-​(3,​4-​dihydroxyphenyl)​-​2,​3-​dihydro-​5,​7-​dihydroxy-​, (2S)​-

CAS Registry Number: 90332-23-3

InChI:

InChIKey:

Formula: C30H22O11

Molecular Weight: 558.495

Exact Mass: 558.1162

NMR Solvent: acetone-d6

MHz: 270.0

Calibration: TMS

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

Species: Semecarpus anacardium - 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 2.74 dd 4, 16
3, 3", trans protons 3.04 m
2, 2" 5.37 dd 4, 12
6 6.12 d 2
8 6.18 d 2
2''', 5''', 6''', 6" or 8" range 6.79 m
2''', 5''', 6''', 6" or 8" range 7.05
2', 5', 6' range 7.16 m
2', 5', 6' range 7.38
7, 4', 7", 3''', 4''' (non-chelated D20 exchangeable hydroxylic protons) 7.11 s
7, 4', 7", 3''', 4''' (non-chelated D20 exchangeable hydroxylic protons) 7.42 s
7, 4', 7", 3''', 4''' (non-chelated D20 exchangeable hydroxylic protons) 7.47 s
5 (chelated hydroxylic proton) 14.18 s
5" (chelated hydroxylic proton) 14.27 s