Equilibria for the isomerization of (secondary-alkyl)phenols and cyclohexylphenols
作者:T.N Nesterova、A.A Pimerzin、A.M Rozhnov、T.N Karlina
DOI:10.1016/0021-9614(89)90139-0
日期:1989.4
a series of isomerizations and trans-alkylations of alkylphenols have been investigated in the liquid phase over a wide range of temperatures. Equilibria of isomerizations connected with the displacement of a substituent on a benzene nucleus were studied for secondary-butyl-, -amyl-, -hexyl-, and cyclohexyl-phenols, and di-(secondary-butyl)phenols. Equilibria of positional isomerization connected with
已经在很宽的温度范围内在液相中研究了一系列烷基酚的异构化和烷基转移的平衡。对于仲丁基-、-戊基-、-己基-和环己基-苯酚以及二-(仲-丁基)苯酚,研究了与苯核上取代基置换相关的异构化平衡。对于氧苯基-戊烷、-己烷、-辛烷和-癸烷,研究了与烷基链中氧苯基的置换相关的位置异构化的平衡。研究了二和三(仲丁基)苯酚的烷基转移。为所有研究的反应找到了 ΔrHmo 和 ΔrSmo 的值。对反应的热力学量进行了分析。计算了气态异丙基苯酚 (ipp) 的形成焓。ΔmHmo(kJ·mol-1) 的值在 298.15 K 处发现:o-ipp,-(175.3±2.4);p-ipp, -(175·3±2.4); m-ipp, -(175.3±2.4); 2,4-di-ipp, -(254.1±2.8); 2,5-di-ipp, -(254.1±2.8); 2,6-di-ipp, -(254.1±2.8); 3,5-di-ipp,-(254