Violanthrone Explained

Violanthrone, also known as dibenzanthrone, is an organic compound that serves as a vat dye and a precursor to other vat dyes. X-ray crystallography confirms that the molecule is planar with C2v symmetry.[1] Isomeric with violanthrone is isoviolanthrone, which has a centrosymmetric structure.

Synthesis

It is produced by coupling of two molecules of benzanthrone.[2] [3] [4]

Notes and References

  1. 10.1107/S0365110X64002584. The Crystal Structure of Violanthrone (Dibenzanthrone). 1964. Bolton. W.. Stadler. H. P.. Acta Crystallographica. 17. 8. 1015–1020. 1964AcCry..17.1015B .
  2. Heinrich Zollinger, Color Chemistry: Syntheses, Properties, and Applications of Organic Dyes and Pigments, 3rd edition, Wiley-VCH, Weinheim, 2003,, p. 291
  3. CN . 106243769 . A kind of preparation method of Vat Brilliant Green FFB . patent . Wang Hongwei, Xu Huixiang, Li Zhen, Jiang Dawei, Gao Hongyu, Guo Yuan.
  4. Aoki . Junji . Studies of Violanthrone B. I. Reduction and Oxidation of Violanthrone B . Bulletin of the Chemical Society of Japan . December 1961 . 34 . 12 . 1817–1819 . 10.1246/bcsj.34.1817 . free .

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