Single-electron transfer in aromatic nucleophilic substitution on dinitrobenzonitriles
作者:Radu Bacaloglu、Andrei Blasko、Clifford A. Bunton、Francisco Ortega、Cesar Zucco
DOI:10.1021/ja00046a017
日期:1992.9
Reactions of OH - with 3,5-dinitrobenzonitrile in water or water-DMSO gives a mixture of unproductive 2- and 4-Meisenheimer complexes that equilibriate and eventually form 3,5-dinitribenzamide and finally the benzoate ion. The corresponding reaction of 2,4-dinitrobenzonitrile gives the 5-Meisenheimer complex and then a mixture of 2,4-dinitrobenzamide and 2,4-dinitrophenoxide ion. The ratio amide:phenoxide
OH - 与 3,5-二硝基苯甲腈在水或水-DMSO 中的反应产生非生产性 2- 和 4-迈森海默配合物的混合物,该配合物平衡并最终形成 3,5-二硝基苯甲酰胺,最后形成苯甲酸离子。2,4-二硝基苯甲腈的相应反应得到 5-Meisenheimer 络合物,然后是 2,4-二硝基苯甲酰胺和 2,4-二硝基苯氧离子的混合物。酰胺:苯氧离子的比例随着 [OH - ] 的增加而增加