Aromatic Nucleophilic Substitution. XVIII. Kinetics of Reactions of 2-(Acetylamino)ethyl 2,6-Dinitrophenyl Ether and<i>N</i>-Acetyl-<i>N</i>-(2-hydroxyethyl)-2,6-dinitroaniline with Sodium Isopropoxide
作者:Shizen Sekiguchi、Motohiko Hirai、Noboru Tomoto
DOI:10.1246/bcsj.56.2752
日期:1983.9
The kinetics of the reactions of 2-(acetylamino)ethyl 2,6-dinitrophenyl ether (Smiles rearrangement) and N-acetyl-N-(2-hydroxyethyl)-2,6-dinitroaniline with sodium isopropoxide in the DMSO–2-propanol mixture (20 : 80 v/v) was studied. Both reactions were found to rapidly produce the same spiro anionic σ complex, giving N-(2-acetoxyethyl)-2,6-dinitroaniline. Although the rates for formation of the complex
2-(乙酰氨基)乙基 2,6-二硝基苯醚 (Smiles 重排) 和 N-乙酰-N-(2-羟乙基)-2,6-二硝基苯胺与异丙醇钠在 DMSO-2-丙醇中的反应动力学对混合物 (20: 80 v/v) 进行了研究。发现这两种反应都能快速产生相同的螺阴离子 σ 络合物,得到 N-(2-乙酰氧基乙基)-2,6-二硝基苯胺。尽管两种反应中复合物的形成速率不同,但重排的速率相同。