Catalytic properties of polymer-colloid complexes based on polyethyleneimines and mono- and diquaternized 1,4-diazabicyclo[2.2.2]octane derivatives in the hydrolysis of phosphorus acids esters
作者:T. N. Pashirova、E. P. Zhil´tsova、S. S. Lukashenko、L. Ya. Zakharova、A. I. Konovalov
DOI:10.1007/s11172-015-1242-6
日期:2015.12
polyethyleneimines, mono- (MQD) and diquaternized (DQD) hexadecyl derivatives of 1,4-diazabicyclo[2.2.2]octane, and mixed polymercolloid systems based thereon catalyze the hydrolysis of p-nitrophenyl alkyl chloromethylphosphonates. The catalysis efficiency depends on the structures of substrate, 1,4-diazabicyclo-[2.2.2]octane derivatives, and polyethyleneimine, pH of the medium, and the temperature. In the case
通过分光光度法确定聚乙烯亚胺、1,4-二氮杂双环[2.2.2]辛烷的单(MQD)和双季铵化(DQD)十六烷基衍生物以及基于其的混合聚合物胶体系统催化对硝基苯基烷基氯甲基膦酸酯的水解。催化效率取决于底物、1,4-二氮杂双环-[2.2.2]辛烷衍生物和聚乙烯亚胺的结构、介质的pH值和温度。在MQD的情况下,随着膦酸酯烷基的长度从R = OEt增加到R = OC6H13,催化效果从20倍变为80倍;与 MQD 相比,DQD 表现出较低的催化活性。