Rubrocurcumin: Difference between revisions
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[[Category:Borates]] |
[[Category:Borates]] |
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[[Category:Complexometric indicators]] |
[[Category:Complexometric indicators]] |
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Revision as of 10:08, 5 December 2010
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| Names | |
|---|---|
| Other names
Rubrocurcumin
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| Identifiers | |
CompTox Dashboard (EPA)
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| Properties | |
| C23H19BO10 | |
| Molar mass | 466.19 g/mol |
| 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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Rubrocurcumin is a red colored dye that is formed by the reaction of curcumin and borates.
Synthesis
The reaction of curcumin with borates in presence of oxalic acid produces rubrocurcumin.[1]
Characteristics
Rubrocurcumin produces a red colored solution.
Rubrocurcumin is a neutrally charged composition, while rosocyanine is build from ions. In rubrocurcumin, one molecule curcumin is replaced with oxalate compared to rosocyanine.
Complexes with boron such as rubrocurcumin are called 1,3,2-dioxaborines.[1]
Literature
- G. S. Spicer, J. D. H. Strickland: Compounds of curcumin and boric acid. Part II. The structure of rubrocurcumin. Journal of the Chemical Society, London 1952, p. 4650–4653
References
- ^ a b Dirk Rohde: Darstellung und Eigenschaftsuntersuchungen an 1,3,2-Dioxaborinen mit variablen Coliganden am Boratom. Dissertation, 2002