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Stability of radical anions derived from substituted 5-nitrofurans investigated by ESR spectroscopy by Jiří Klímaa, Larisa Baumaneb, Janis Stradinšb, Jiří Volkea and Romualds Gavarsb is a scholarly article available to read on EtoBox.

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It has been found that the decay in dimethylformamide and dimethylformamide-water mixtures of radical anions in five of the investigated 5-nitrofurans is governed by a second-order reaction. Only the decay of the radical anion generated from 5-nitro-2-furfural III may be described by an equation including parallel first- and second-order reactions; this behaviour is evidently caused by the relatively high stability of the corresponding dianion, this being an intermediate in the reaction path. The presence of a larger conjugated system in the substituent in position 2 results in a decrease of the unpaired electron density in the nitro group and, consequently, an increase in the stability of the corresponding radical anions.

Author

Jiří Klímaa, Larisa Baumaneb, Janis Stradinšb, Jiří Volkea and Romualds Gavarsb

Published

1985

Language

EN