Insight into Fundamental Rules of Phenylenediamines Selective Monoacylation by the Comparisons of Kinetic Characteristics in Microreactor,Bulletin of the Korean Chemical Society

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Insight into Fundamental Rules of Phenylenediamines Selective Monoacylation by the Comparisons of Kinetic Characteristics in Microreactor
Bulletin of the Korean Chemical Society ( IF 2.3 ) Pub Date : 2021-08-03 , DOI: 10.1002/bkcs.12376
Qilin Xu ₁ , Ji Ming Liu ₂ , Hongmiao Yao ₂ , Jinyang Zhao ₂ , Zhikuo Wang ₂ , Junli Liu ₃ , Jiadi Zhou ₂ , Zhiqun Yu ₂ , Weike Su _{1,

2}

Affiliation

In this paper, the kinetics of acylation reaction of o-phenylenediamine/p-phenylenediamine and benzoic anhydride were determined in microreactors, respectively. A kinetic model was established, all kinetic parameters including reaction orders, reaction rate constants, pre-exponential factors, and activation energies were acquired. Validation experiments showed experimental data fit well with calculated data at different reactant concentrations and residence times. The comparisons of the reaction rate constants and activation energies were summarized to show the difference of chemical reactivities of phenylenediamines. According to the calculation of the kinetic model, the optimized reaction conditions were listed to meet the monoacylation selectivity equal to 97.0%.

中文翻译：

通过微反应器动力学特性的比较洞察苯二胺选择性单酰化反应的基本规律

在本文中，酰化反应的动力学直径：苯二胺/ p苯二胺和苯甲酸酐是在微反应器中分别确定。建立动力学模型，得到反应阶数、反应速率常数、指前因子、活化能等所有动力学参数。验证实验表明，实验数据与不同反应物浓度和停留时间下的计算数据非常吻合。总结反应速率常数和活化能的比较以显示苯二胺化学反应性的差异。根据动力学模型计算，列出了优化的反应条件，满足单酰化选择性等于97.0%。

更新日期：2021-08-03

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