Effect of solvent on the kinetics of arylsulfonylation of N-alkylated anilines in a water-propan-2-ol system
作者:T. P. Kustova、I. O. Sterlikova
DOI:10.1007/s11172-006-0364-2
日期:2006.6
The effect of the composition of a water-propan-2-ol solvent on the kinetics of arylsulfonylation of N-ethyl-, N-isopropyl-, and N-butylanilines with 3-nitrobenzenesulfonyl chloride at 298 K was studied. The reaction rate constant increases monotonically with an increase in the water fraction in the solvent from 5 to 30 wt.%. The apparent activation parameters of the reaction of N-butylaniline with
研究了水-丙-2-醇溶剂的组成对 N-乙基-、N-异丙基-和 N-丁基苯胺与 3-硝基苯磺酰氯在 298 K 的芳基磺酰化动力学的影响。反应速率常数随着溶剂中水含量从 5 重量%增加到 30 重量%而单调增加。计算了N-丁基苯胺与3-硝基苯磺酰氯反应的表观活化参数。从纯丙-2-醇到10%的水溶液,没有观察到反应活化参数的显着变化,这表明溶剂变化后机理保持不变。水含量为 5-30 wt.% 的 2-丙醇可用于合成所研究胺的芳基磺酰化产物,产率为 98-99%。