Chalcone[1] | |
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1,3-Diphenyl-2-propen-1-one |
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Other names
Chalcone |
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Identifiers | |
CAS number | 94-41-7 , 614-47-1 ((E)-Chalcone) |
PubChem | 637760 |
ChemSpider | 6921 |
ChEBI | CHEBI:27618 |
Jmol-3D images | Image 1 |
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Properties | |
Molecular formula | C15H12O |
Molar mass | 208.26 g mol−1 |
Exact mass | 208.088815 |
Density | 1.071 g/cm3 |
Melting point |
55–57 °C |
Boiling point |
345–348 °C |
(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 |
Chalcone is an aromatic ketone and an enone that forms the central core for a variety of important biological compounds, which are known collectively as chalcones or chalconoids.
Contents |
Chalcones can be prepared by an aldol condensation between a benzaldehyde and an acetophenone in the presence of sodium hydroxide as a catalyst.
This reaction has been found to work without any solvent at all - a solid-state reaction.[2] The reaction between substituted benzaldehydes and acetophenones has been used to demonstrate green chemistry in undergraduate chemistry education.[3] In a study investigating green chemistry synthesis, chalcones were also synthesized from the same starting materials in high temperature water (200 to 350 °C).[4]
An example is the carbonyl reduction of chalcone by tributyltin hydride [5]:
Conjugate reduction chalcone |
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An asymmetric version of this reaction has also been developed.[6]