Anion radicals from imidazobenzoquinones

The electron resonance spectra of the radicals generated by reducing with potassium t-butoxide in DMSO imidazo- ortho- and para-benzoquinones and the corresponding 1-methyl and 2-methyl derivatives are reported. From the relative values of the hyperfine splitting constants, evidence has been obtaine...

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Bibliographic Details
Published in:Journal of magnetic resonance (1969) 1973-01, Vol.12 (3), p.331-336
Main Authors: Pedulli, G.F, Spisni, A, Vivarelli, P, Dembech, P, Seconi, G
Format: Article
Language:English
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Summary:The electron resonance spectra of the radicals generated by reducing with potassium t-butoxide in DMSO imidazo- ortho- and para-benzoquinones and the corresponding 1-methyl and 2-methyl derivatives are reported. From the relative values of the hyperfine splitting constants, evidence has been obtained that the radicals from N-unsubstituted quinones possess a dianionic structure which results from the sum of two processes: reduction of the parent molecule to the monoanionic form and ionization of the iminic proton.
ISSN:0022-2364
1557-8968
DOI:10.1016/0022-2364(73)90119-4