Rubrocurcumin is a red-colored dye that is formed by the reaction of curcumin and boric acid.[1]
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IUPAC name
2-[(1E,3Z,6E)-1,7-Bis(4-hydroxy-3-methoxyphenyl)-5-oxohepta-1,3,6-trien-3-yl]oxy-1,3,2-dioxaborolane-4,5-dione
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Other names
Rubrocurcumin
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3D model (JSmol)
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PubChem CID
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CompTox Dashboard (EPA)
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Properties | |
C23H19BO10 | |
Molar mass | 466.21 g·mol−1 |
Appearance | Red solid |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Synthesis
editThe reaction of curcumin with borates in presence of oxalic acid produces rubrocurcumin.[2]
Characteristics
editRubrocurcumin produces a red-colored solution.
Rubrocurcumin is a neutral molecule, while rosocyanine is ionic. In rubrocurcumin, one molecule of curcumin is replaced with oxalate compared to rosocyanine.
Complexes with boron such as rubrocurcumin are called 1,3,2-dioxaborines.[2]
References
edit- ^ Spicer, G. S.; Strickland, J. D. H. (1952). "Compounds of Curcumin and Boric Acid. Part II. The Structure of Rubrocurcumin". Journal of the Chemical Society. 1952 (art. 907). London: 4650–4653. doi:10.1039/JR9520004650.
- ^ a b Rohde, D. (2002). Darstellung und Eigenschaftsuntersuchungen an 1,3,2-Dioxaborinen mit variablen Coliganden am Boratom [Presentation and characterization of 1,3,2-dioxaborins with variable coligands on the boron atom] (Dissertation). University Halle.