合成了2-氨基吡啶(2-AP)为配体的Zn(2-AP)2(OAc)2,Ni(2-AP)2(OAc)2和Cu(2-AP)2(OAc)2三种金属配合物,并将其用于催化2-吡啶甲酸对硝基苯酚酯(PNPP)和乙酸对硝基苯酚酯(PNPA)的水解反应. 研究了金属配合物催化PNPP水解的动力学,提出了可能的催化机理. 结果表明,Zn(2-AP)2(OAc)2和Ni(2-AP)2(OAc)2金属配合物对PNPP水解反应有显著的催化作用,且Ni(2-AP)2(OAc)2的催化活性大于Zn(2-AP)2(OAc)2,而对PNPA无催化活性. Cu(2-AP)2(OAc)2对PNPP和PNPA均无催化活性. 这可能源自底物本身的特性以及配合物结构的差异. 同时,实验结果也说明合成的Zn(2-AP)2-(OAc)2和Ni(2-AP)2(OAc)2是水解金属酶的良好模型.
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