Co-micelles of cetyltrimethylammonium bromide and lipophilic bis-imidazole ligands having primary and secondary hydroxyl groups in their side chains were investigated for their catalytic activities in the hydrolysis of p-nitrophenyl picolinate in the presence of Zn2+ and Cu2+ at 25 °C. The kinetic and product analyses strongly suggested that the site-selective acylation of hydroxyl groups of ligands
研究了
十六烷基三甲基溴化铵和侧链上具有伯羟基和仲羟基的亲脂性
双咪唑配体的共胶束在 25°C 下,在 Zn2+ 和 Cu2+ 存在下
水解
吡啶甲酸对
硝基苯基酯的催化活性。动力学和产物分析强烈表明
配体羟基的位点选择性酰化是通过形成 Zn2+ 离子的四面体和 Cu2+ 离子的方形平面复合物而发生的。