3-Hydroxyflavone
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| Template:Longitem | C15H10O3 |
| Molar mass | 238.23 g/mol |
| Density | 1.367 g/mL |
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3-Hydroxyflavone is a chemical compound. It is the backbone of all flavonols, a type of flavonoid. It is a synthetic compound, which is not found naturally in plants. It serves as a model molecule as it possesses an excited-state intramolecular proton transfer (ESIPT) effect[1] to serve as a fluorescent probe to study membranes for example[2] or intermembrane proteins.[3] The green tautomer emission (λmax ≈ 524 nm) and blue-violet normal emission (λmax ≈ 400 nm) originate from two different ground state populations of 3HF molecules.[4] The phenomenon also exists in natural flavonols. Although 3-hydroxyflavone is almost insoluble in water, its aqueous solubility (hence bio-availability) can be increased by encapsulation in cyclodextrin cavities.[5]
Synthesis
The Algar-Flynn-Oyamada reaction is a chemical reaction whereby a chalcone undergoes an oxidative cyclization to form a flavonol.
References
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- ↑ All-optical switchings of 3-hydroxyflavone in different solvents. Wu Feng, Lin Lie, Li Xiang-Ping, Yu Ya-Xin, Zhang Gui-Lan and Chen Wen-Ju, Chinese Phys. B 17 1461-1466.
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