Jeediflavanone tetramethyl ether

Jeediflavanone tetramethyl ether

Common Name: Jeediflavanone tetramethyl 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-​dihydro-​5-​hydroxy-​2-​(3-​hydroxy-​4-​methoxyphenyl)​-​7-​methoxy-​, [S-​(R*,​R*)​]​- (9CI)

CAS Registry Number: 90332-24-4

InChI:

InChIKey:

Formula: C34H30O11

Molecular Weight: 614.6

Exact Mass: 614.1788

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 2.76 dd 4, 16
3, 3", trans protons 3.12 m
2, 2" 5.44 br d 11
6 6.16 d 2
8 6.22 d 2
6" or 8" 6.55 s
2''', 5''', 6''' 6.88 m
2''', 5''', 6''' 7.09
2', 5', 6' 7.17 m
2', 5', 6' 7.34
7, 4', 7", 4''' (methoxy groups) 3.79 s
3''' (non-chelated D2O exchangeable hydroxylic proton) 7.45 s
5 (chelated hydroxylic proton) 14.14 s
5" (chelated hydroxylic proton) 14.22 s