Rapid phosphodiester hydrolysis catalyzed by lanthanum(III)

被引：4
|
作者：
Kou, XM [1 ]
Hu, Y
Huang, Z
Meng, XG
Zeng, XC
机构：
[1] Sichuan Univ, Fac Chem, Sichuan Key Lab Green Chem & Technol, Chengdu 610064, Sichuan, Peoples R China
[2] China Acad Engn Phys, Mianyang 621900, Sichuan, Peoples R China
来源：
CHINESE JOURNAL OF CHEMISTRY | 2005年 / 23卷 / 10期
关键词：
phosphodiester; hydrolysis; lanthanum(III) ion; amino-alcohol; artificial nuclease; kinetics;
D O I：
10.1002/cjoc.200591303
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The catalytic hydrolysis of bis(4-nitrophenyl)phosphate (BNPP) by lanthanum(III) ion in the presence of amino-alcoholic ligands: diethanolamine (DEA) and triethanolamine (TEA), was investigated kinetically at 30 degrees C. The results indicated that the dinuclear dihydroxo complexes formed by lanthanum(III) ion with aminoalcoholic ligands might be the catalytically active species which catalyze the hydrolysis of BNPP to different extents and the catalytic mechanism was believed to involve the synergism of double Lewis acid activation of the substrate and an intramolecular nucleophilic attack of a bridging oxo ligand.
引用
收藏
页码：1303 / 1308
页数：6
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