Aromatic radical anions as possible intermediates in the nucleophilic aromatic substitution (SNAr): an EPR study
作者:Loris Grossi、Samantha Strazzari
DOI:10.1039/a903407b
日期:——
The reactions among halonitrobenzenes or polynitrobenzenes and alkoxides, thiolates or tertiary amines have provided the evidence that in a SNAr reaction type a single electron transfer from the nucleophile to the aromatic substrate, to generate two radical species within the solvent cage, can take place to some extent. The detection of radical intermediates by EPR spectroscopy, in several SNAr reactions
卤代硝基苯或多硝基苯与醇盐,硫醇盐或叔胺之间的反应提供了证据,表明在S N Ar反应类型中,可以发生从亲核体到芳族底物的单电子转移,从而在溶剂笼内产生两个自由基在某种程度上。通过EPR光谱学,在几μs自由基中间体的检测Ñ氩反应报道。