Spektraris NMR
8,8-Dimethyl-3-phenyl-4H,8H-pyrano[2,3-f]chromen-4-one
![8,8-Dimethyl-3-phenyl-4H,8H-pyrano[2,3-f]chromen-4-one](/nmr/static/nmr/svg/12224.svg)
Common Name: 8,8-Dimethyl-3-phenyl-4H,8H-pyrano[2,3-f]chromen-4-one
Synonyms: 8,8-Dimethyl-3-phenyl-4H,8H-pyrano[2,3-f]chromen-4-one
CAS Registry Number:
InChI: InChI=1S/C20H16O3/c1-20(2)11-10-14-17(23-20)9-8-15-18(21)16(12-22-19(14)15)13-6-4-3-5-7-13/h3-12H,1-2H3
InChIKey: InChIKey=FGPOYSORZHVVPN-UHFFFAOYSA-N
Formula: C20H16O3
Molecular Weight: 304.339985
Exact Mass: 304.109944
NMR Solvent: CDCl3
MHz:
Calibration:
NMR references: 13C - Vilain, C., Jadot, J. Bull Soc Chim Belg (1977) 86, 473
Species:
Notes: Family : Flavonoids, Type : Isoflavonoids, Group : Isoflavones; 13 C Spectrum from Naproc 13: José Luis López-Pérez, Roberto Therón, Esther del Olmo, David Díaz: NAPROC-13: a database for the dereplication of natural product mixtures in bioassay-guided protocols. Bioinformatics 23(23):3256-3257 (2007)
Carbon NMR Peaks
| Position | PPM |
|---|---|
| 2 (CH) | 151.9 |
| 3 (C) | 125.1 |
| 4 (C) | 175.4 |
| 5 (CH) | 126.4 |
| 6 (CH) | 114.8 |
| 7 (C) | 157.2 |
| 8 (C) | 109 |
| 9 (C) | 152.2 |
| 10 (C) | 118.4 |
| 1' (C) | 131.8 |
| 2' (CH) | 128.1 |
| 3' (CH) | 128.7 |
| 4' (CH) | 127.8 |
| 5' (CH) | 128.7 |
| 6' (CH) | 128.1 |
| 8a (CH) | 114.9 |
| 8b (CH) | 130.1 |
| 8c (C) | 77.6 |
| 8d (CH3) | 28.2 |
| 8e (CH3) | 28.2 |
