7,4',7',4''-Tetramethylisochamaejasmin

7,4',7',4''-Tetramethylisochamaejasmin

Common Name: 7,4',7',4''-Tetramethylisochamaejasmin

Synonyms: [3,​3'-​Bi-​4H-​1-​benzopyran]​-​4,​4'-​dione, 2,​2',​3,​3'-​tetrahydro-​5,​5'-​dihydroxy-​7,​7'-​dimethoxy-​2,​2'-​ bis(4-​methoxyphenyl)​-​, (2R,​2'S,​3S,​3'R)​-

CAS Registry Number: 1206814-03-0

InChI:

InChIKey:

Formula: C34H30O10

Molecular Weight: 598.6

Exact Mass: 598.1839

NMR Solvent: Me2CO-d6

MHz: 400 (1H), 75 (13C)

Calibration: TMS

NMR references: Reddy, B., Reddy, N., Gunasekar, D., Blond, A., Bodo, B. (2008). Phytochem. Lett. 1, 27-30.

Species: Ochna lanceolata - Reddy, B., Reddy, N., Gunasekar, D., Blond, A., Bodo, B. (2008). Phytochem. Lett. 1, 27-30.

Notes:

Proton NMR Peaks

Position PPM Peak Type J (Hz)
2, 2" 5 d 12
3, 3" 3.92 d 12
5-OH, 5"-OH 11.9 s
6, 6" 6.08 d 2
7-OCH3, 4', 7", 4''' 3.81 s
8, 8" 5.91 d 2
2', 6', 2''', 6''' 7.22 d 8
3', 5', 3''', 5''' 7.01 d 8

Carbon NMR Peaks

Position PPM
2, 2" 81.9
3, 3" 48.5
4, 4" 196.7
10, 10" 103.1
5, 5" 165.1
6, 6" 95.8
7, 7" 169.2
8, 8" 94.6
9, 9" 163.7
1', 1''' 129.5
2', 6', 2''', 6''' 130.6
4', 4''' 161.6
3', 5', 3''', 5''' 115.1
7-OCH3, 7"-OCH3 56.3
4'-OCH3, 4'''-OCH3 55.7