The nucleophilic aromatic photosubstitutions of 4,5-dinitroveratrole with amines. Photoreductions of aromatic dinitrocompounds

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Abstract

4,5-Dinitroveratrole is effectively photosubstituted by amines with relatively high ionization potential such as methylamine, n-butylamine and ethyl glycinate, but is mainly photoreduced when amines with relatively low ionization potential, such as dimethyl or trimethylamine are used. The photoreduction of several aromatic dinitrocompounds by triethylamine gives nitroanilines. A mechanistic scheme is proposed embracing our photosubstitutions and photoreductions, based on our experimental results and on MINDO/3 calculations of the ground states and the more likely intermediates. © 1987.
Original languageEnglish
Pages (from-to)351-360
JournalTetrahedron
Volume43
Issue number2
DOIs
Publication statusPublished - 1 Jan 1987

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