Chemistry:Diazaquinone

From HandWiki
Revision as of 06:56, 23 June 2022 by imported>John Marlo (fix)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

A diazaquinone is a chemical compound that has an heterocyclic aromatic core including two consecutive doubly-bonded nitrogen atoms –N=N–, with the two =CH– carbon units adjacent to the nitrogens replaced by carbonyl (ketone) groups –(C=O)–. These carbon and nitrogen atoms then comprise a diacyl diimide unit, –(C=O)–N=N–(C=O)–.[1] Two canonical examples are 3,6-pyridazinedione (a quinone of pyridine), emerald-green; and 1,4-phthalazinedione (a quinone of phthalazine) a green crystalline solid (both soluble in acetone and stable at -77 °C).[1]

The name was proposed by Thomas J. Kealy in 1962.[1]

References

  1. 1.0 1.1 1.2 Thomas J. Kealy (1962): "The Chemistry of Diazaquinones: 3,6-Pyridazinedione and 1,4-Phthalazinedione". Journal of the American Chemical Society, volume 84, issue 6, pages 966–973. doi:10.1021/ja00865a018