Anthraquinones tautomerism: VII. Hydroxy-substituted anthraquinones

Tautomerism of β-mono-, β,β'-dihydroxyanthraquinones, and their anions was studied for the first time by quantum-chemical and correlation methods. 2-Hydroxyanthraquinone exists exclusively in 9,10-quinoid form, and its ionization involves a tautomeric transformation into 10-oxido-2,9- anthraquinone. β,β'-Dihydroxyanthraquinones can exist as the corresponding 9,10-, 2,9-, 2,6-, and 2,3-quinoid tautomers, and the most characteristic forms of their anions are 2,9-quinoid structures. The considerable difference in the known spectra of the same compound is due to the shifts of the tautomeric equilibria. © 2007 Pleiades Publishing, Ltd.

Authors
Number of issue
10
Language
English
Pages
1460-1465
Status
Published
Volume
43
Year
2007
Organizations
  • 1 Russian University of Peoples Friendship, Moscow 127349, Russian Federation
Date of creation
19.10.2018
Date of change
19.10.2018
Short link
https://repository.rudn.ru/en/records/article/record/3195/
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