Catalytic zinc complexes for phosphate diester hydrolysis.
Catalytic zinc complexes for phosphate diester hydrolysis.
复制标题
DOI:
10.1002/anie.201400335
复制
发表时间:
2014-07-28
影响因子:
16.6
通讯作者:
Williams, Nicholas H.
中科院分区:
文献类型:
--
作者:
Tirel, Emmanuel Y.;Bellamy, Zoe;Adams, Harry;Lebrun, Vincent;Duarte, Fernanda;Williams, Nicholas H.
Creating efficient artificial catalysts that can compete with biocatalysis has been an enduring challenge which has yet to be met. Reported herein is the synthesis and characterization of a series of zinc complexes designed to catalyze the hydrolysis of phosphate diesters. By introducing a hydrated aldehyde into the ligand we achieve turnover for DNA-like substrates which, combined with ligand methylation, increases reactivity by two orders of magnitude. In contrast to current orthodoxy and mechanistic explanations, we propose a mechanism where the nucleophile is not coordinated to the metal ion, but involves a tautomer with a more effective Lewis acid and more reactive nucleophile. This data suggests a new strategy for creating more efficient metal ion based catalysts, and highlights a possible mode of action for metalloenzymes.
登录
查看更多内容
影响因子:
3.2
作者:
Lonnberg, Harri
通讯作者:
Lonnberg, Harri
影响因子:
15
作者:
Feng, GQ;Mareque-Rivas, JC;Williams, NH
通讯作者:
Williams, NH
影响因子:
4.3
作者:
Livieri, Monica;Mancin, Fabrizio;Tonellato, Umberto
通讯作者:
Tonellato, Umberto
影响因子:
4.6
作者:
Comba, Peter;Gahan, Lawrence R.;Zajaczkowski-Fischer, Marta
通讯作者:
Zajaczkowski-Fischer, Marta
影响因子:
15
作者:
Chin, J;Chung, S;Kim, DH
通讯作者:
Kim, DH