Kinetics and mechanism of the reactions of ozone with guaiacol, veratrol, and veratrol derivatives
作者:A. G. Khudoshin、A. N. Mitrofanova、V. V. Lunin
DOI:10.1007/s11172-008-0043-6
日期:2008.2
The kinetics of the reactions of ozone with compounds modeling structural lignin fragments, viz., phenol, guaiacol, veratrol, veratric aldehyde, and veratric alcohol, was studied. The reaction rate constants were calculated using the mass transfer model for the chemical reaction based on the film theory. The rate constants of the reactions of ozone with compounds of the veratryl series were calculated by the Hammett equation. The major ozonation products of the studied compounds were determined by HPLC. The ozonation mechanism was proposed.
研究了臭氧与木质素结构碎片模型化合物(即苯酚、愈创木酚、藜芦醇、藜芦醛和藜芦醇)的反应动力学。采用基于膜理论的化学反应传质模型计算了反应速率常数。臭氧与藜芦醇系列化合物反应的速率常数是通过 Hammett 方程计算得出的。通过高效液相色谱法确定了所研究化合物的主要臭氧生成物。提出了臭氧反应机理。