the positively charged CP66 by electrostatic association. The kinetic system is represented by 11 single steps, including the hydrolysis via a binary complex with CP66 and a side reaction to Meisenheimer products. Seven constants are determined by separate measurements with different techniques; three parameters for the ternary complex are then identified by curve fitting to the observed saturation
介绍了光谱和计算程序,用于分析发生在由 azoniacyclophane (CP66) 催化的酰基转移反应中的高度复杂的动力学方案。产品鉴定和抑制实验支持的结果表明,酰基从腔内结合的底物如 2,4-二
硝基萘乙酸酯 (DNNA) 转移到羟基
苯甲酸,后者作为共底物通过静电缔合与带正电荷的 CP66 结合。动力学系统由 11 个单步表示,包括通过与 CP66 的二元复合物
水解和对迈森海默产物的副反应。七个常数是通过不同技术的单独测量确定的;然后通过拟合观察到的饱和动力学的曲线确定三元复合物的三个参数