Aurone
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Aurone
Not to be confused with Auron.
| Aurone | |
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2-Benzylidene-1-benzofuran-3-one |
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| Identifiers | |
| CAS number | 582-04-7  =, [75318-34-2] (E) [37542-14-6] (Z) |
| PubChem | 613552 |
| ChemSpider | 533325 |
| Jmol-3D images | Image 1 |
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| Properties | |
| Molecular formula | C15H10O2 |
| Molar mass | 222.24 g mol−1 |
 (verify) (what is:  / ?)Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) |
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| Infobox references | |
Aurone is a heterocyclic chemical compound which is a type of flavonoid.[1] There are two isomers of the molecule, with (E)- and (Z)-configurations. The molecule contains a benzofuran element associated with a benzylidene linked in position 2. In aurone, a chalcone-like group is closed into a 5-membered ring instead of the 6-membered ring more typical of flavonoids.
Aurone forms the core for a family of derivatives which are known collectively as aurones. Aurones are plant flavonoids that provide yellow color to the flowers of some popular ornamental plants, such as snapdragon and cosmos.[2] Aurones including 4'-chloro-2-hydroxyaurone (C15H11O3Cl) and 4'-chloroaurone (C15H9O2Cl) can also be found in the brown alga Spatoglossum variabile.[3]
Most aurones are in a (Z)-configuration, which is the more stable configuration according to Austin Model 1 computation,[3] but there are also some in the (E)-configurations such as (E)-3'-O-β-d-glucopyranosyl-4,5,6,4'-tetrahydroxy-7,2'-dimethoxyaurone, found in Gomphrena agrestis.[4]
Analogy with flavonoids suggests that aurones could have interesting biological properties.[5]
Related compound examples
- Aureusidin
- Hispidol (6,4'-Dihydroxyaurone)[6]
- Leptosidin
- Sulfuretin (6,3',4'-Trihydroxyaurone)
- 4,5,6-Trihydroxyaurone
Metabolism
- Aureusidin synthase[2]
References
- ^ Nakayama, T (2002). "Enzymology of aurone biosynthesis". Journal of Bioscience and Bioengineering 94 (6): 487–91. doi:10.1016/S1389-1723(02)80184-0. PMID 16233339.
- ^ a b Nakayama, T; Sato, T; Fukui, Y; Yonekura-Sakakibara, K; Hayashi, H; Tanaka, Y; Kusumi, T; Nishino, T (2001). "Specificity analysis and mechanism of aurone synthesis catalyzed by aureusidin synthase, a polyphenol oxidase homolog responsible for flower coloration". FEBS Letters 499 (1–2): 107–11. doi:10.1016/S0014-5793(01)02529-7. PMID 11418122.
- ^ a b Atta-Ur-Rahman; Choudhary, MI; Hayat, S; Khan, AM; Ahmed, A (2001). "Two new aurones from marine brown alga Spatoglossum variabile". Chemical & pharmaceutical bulletin 49 (1): 105–7. doi:10.1248/cpb.49.105. PMID 11201212. http://www.jstage.jst.go.jp/article/cpb/49/1/105/_pdf.
- ^ Ferreira, EO; Salvador, MJ; Pral, EM; Alfieri, SC; Ito, IY; Dias, DA (2004). "A new heptasubstituted (E)-aurone glucoside and other aromatic compounds of Gomphrena agrestis with biological activity". Zeitschrift fur Naturforschung. C, Journal of biosciences 59 (7–8): 499–505. PMID 15813368. http://www.znaturforsch.com/ac/v59c/s59c0499.pdf.
- ^ Villemin, Didier; Martin, Benoit; Bar, Nathalie (1998). "Application of Microwave in Organic Synthesis. Dry Synthesis of 2-Arylmethylene-3(2)-naphthofuranones". Molecules 3 (3): 88. doi:10.3390/30300088.
- ^ Hispidol on metabolomics.jp
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