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Flavan

From Wikipedia, the free encyclopedia
Flavan
Names
IUPAC name
Flavan
Systematic IUPAC name
2-Phenyl-3,4-dihydro-2H-1-benzopyran
Identifiers
3D model (JSmol)
383899
ChEBI
ChEMBL
ChemSpider
ECHA InfoCard100.007.079Edit this at Wikidata
EC Number
  • 207-786-6
  • InChI=1S/C15H14O/c1-2-6-12(7-3-1)15-11-10-13-8-4-5-9-14(13)16-15/h1-9,15H,10-11H2
    Key: QOLIPNRNLBQTAU-UHFFFAOYSA-N
  • C1CC2=CC=CC=C2OC1C1=CC=CC=C1
Properties
C15H14O
Molar mass210.27 g/mol
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound

Theflavans arebenzopyran derivatives that use the 2-phenyl-3,4-dihydro-2H-chromene skeleton. They may be found in plants. These compounds include theflavan-3-ols,flavan-4-ols andflavan-3,4-diols (leucoanthocyanidin).

AC-glycosidic flavan can be isolated fromcocoa liquor.[1]

Casuarina glauca is anactinorhizal plant producing root nitrogen-fixing nodules infested byFrankia. There is a regular pattern of cell layers containing flavans.[2]

References

[edit]
  1. ^Proanthocyanidin glycosides and related polyphenols from cacao liquor and their antioxidant effects. Tsutomu Hatano, Haruka Miyatake, Midori Natsume, Naomi Osakabe, Toshio Takizawa, Hideyuki Ito and Takashi Yoshida, Phytochemistry, April 2002, Volume 59, Issue 7, Pages 749–758,doi:10.1016/S0031-9422(02)00051-1
  2. ^Laplaze, L.; Gherbi, H.; Frutz, T.; Pawlowski, K.; Franche, C.; Macheix, J. J.; Auguy, F.; Bogusz, D.; Duhoux, E. (2002). "Flavan-Containing Cells Delimit Frankia Infected Compartments in Casuarina glauca Nodules".Nitrogen Fixation: From Molecules to Crop Productivity. Current Plant Science and Biotechnology in Agriculture. Vol. 38. p. 455.doi:10.1007/0-306-47615-0_254.ISBN 0-7923-6233-0.
Types offlavonoids
Flavonoids
Anthoxanthins
Flavones
Flavonols
Isoflavones
Neoflavonoids
Flavans
Flavan
Flavan-3-ols
(flavanols)
Flavan-4-ols
(flavanols)
Flavan-3,4-diols
Flavanones
Flavanonols
Anthocyanidins
3-deoxyanthocyanidins
3-hydroxyanthocyanidin
Aurones
Chalcones
Chalcones
Dihydrochalcone
Miscellaneous
Flavans and theirglycosides
Flavans
Glycosides
acetylated
Glucosyloxyflavans
Betalains
Chlorophyll
Curcuminoids
Flavonoids
Carotenoids
Other
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