Kinetics of reaction of triethylammonium carboxylates with α-halogenocarbonyl compounds in organic solvents
作者:M.Krishna Pillay、K. Kannan、P. Ramasubramanian
DOI:10.1016/s0040-4020(01)90893-2
日期:1983.1
of the reaction of phenacyl bromide with triethylammonium p-substituted benzoates and phenoxyacetates at 25°, 30° and 35° in acetone suggest a rigid cyclic transition state involving a hydrogen bonded ion-pair as the active nucleophile. The effect of addition of water on the rate constant is rationalized. Regression analysis on single parameter treatment on benzoates shows that the reaction obeys the
苯甲酰溴与三乙基铵对位取代的苯甲酸酯和苯氧乙酸酯在丙酮中在25°,30°和35°下反应的动力学表明,刚性环过渡态涉及氢键结合的离子对作为活性亲核试剂。加水对速率常数的影响是合理的。对苯甲酸酯进行单参数处理的回归分析表明,该反应符合哈米特方程(ϱ值+ 0.37,r = 0.993)。