Kinetics and reactivity of substituted anilines with 2-chloro-5-nitropyridine in dimethyl sulfoxide and dimethyl formamide
作者:Ali A. El-Bardan、Gehan M. El-Subruiti、Fatma El-Zahraa M. El-Hegazy、Ezzat A. Hamed
DOI:10.1002/kin.10053
日期:——
The kinetics of the reaction of substituted anilines with 2-chloro-5-nitropyridine were studied in dimethyl sulfonide (DMSO) and dimethyl formamide (DMF) at different amine concentrations and temperatures in the range 45–60°C. In both solvents the reaction was not a base-catalyzed one. A plot of ΔH# versus ΔS# for the reaction in DMSO and DMF gave good straight lines with isokinetic temperatures 128°C
在 45-60°C 范围内的不同胺浓度和温度下,在二甲基亚砜 (DMSO) 和二甲基甲酰胺 (DMF) 中研究了取代苯胺与 2-氯-5-硝基吡啶的反应动力学。在两种溶剂中,反应都不是碱催化的。在 DMSO 和 DMF 中的反应的 ΔH# 与 ΔS# 的图给出了良好的直线,等速温度分别为 128°C 和 105°C。从 log k1 与 σ° 值在所有温度下与负 ρ 值(DMSO 中为 -1.63 至 -1.28)和(DMF 中为 -1.26 至 -0.90)的图获得了良好的线性关系。© 2002 Wiley Periodicals, Inc. Int J Chem Kinet 34: 645–650, 2002