The kinetics of the reaction of some chloroisoxazolo[4.5-<i>c</i>] and [5,4-<i>b</i>] pyridines with methoxide ion
作者:Giorgio Adembri、Alfredo Camparini Fabio Ponticelli、Piero Tedeschi
DOI:10.1002/jhet.5570160111
日期:1979.1
Arrhenius parameters were measured for the methoxy-lechlorination reactions of some chloroderivatives of isoxazolo[4,5-c]- and [5,4-b]pyridine. A comparison of these results with the kinetic data for the corresponding chloropyridines shows that fusion of the isoxazole ring with the pyridine ring strongly increases the reactivity of the 4- and 6-positions toward nucleophilic substitution.
测量了异恶唑啉[4,5- c ]-和[5,4- b ]吡啶的一些氯衍生物的甲氧基-氯氯化反应的阿累尼乌斯参数。将这些结果与相应的氯吡啶的动力学数据进行比较,结果表明,异恶唑环与吡啶环的融合极大地提高了4位和6位对亲核取代的反应性。