Rubrocurcumin

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OtherNames = Rubrocurcumin
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CASNo = 12098-66-7
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Section2 = Chembox Properties
Formula = C₂₃H₁₉BO₁₀
MolarMass = 466.19 g/mol
Appearance = red solid
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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.Dirk Rohde: " [http://sundoc.bibliothek.uni-halle.de/diss-online/02/02H082/ Darstellung und Eigenschaftsuntersuchungen an 1,3,2-Dioxaborinen mit variablen Coliganden am Boratom] ". Dissertation, 2002]

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.

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