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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Copper(ii)-benzotriazole coordination compounds in click chemistry: a diagnostic reactivity study
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Copper(ii)-benzotriazole coordination compounds in click chemistry: a diagnostic reactivity study

机译:铜(II)-Benzotriazole配位化合物单击化学:诊断反应性研究

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摘要

This diagnostic study aims to shed light on the catalytic activity of a library of Cu(ii) based coordination compounds with benzotriazole-based ligands. We report herein the synthesis and characterization of five new coordination compounds formulated as [Cu-II(L-4)(MeCN)(2)(CF3SO3)(2)] (1), [Cu-II(L-5)(2)(CF3SO3)(2)] (2), [Cu-II(L-6)(2)(MeCN)(CF3SO3)](CF3SO3) (3), [Cu-II(L-6)(2)(H2O)(CF3SO3)](CF3SO3)2(Me2CO) (4), and [CuI4(L-1)(2)(L-1)(2)(CF3SO3)(2)](2)4(CF3SO3)8(Me2CO) (5), derived from similar nitrogen-based ligands. The homogeneous catalytic activity of these compounds along with our previously reported coordination compounds (6-13), derived from similar ligands, is tested against the well-known Cu(i)-catalysed azide-alkyne cycloaddition reaction. The optimal catalyst [Cu-II(L-1)(2)(CF3SO3)(2)] (10) activates the reaction to afford 1,4-disubstituted 1,2,3-triazoles with yields up to 98% and without requiring a reducing agent. Various control experiments are performed to optimize the method and examine parameters such as ligand variation, metal coordination geometry and environment, in order to elucidate the behaviour of the catalytic system.
机译:该诊断研究旨在阐明与基于苯并三唑基配体的Cu(II)基于Cu(II)文库的催化活性。我们在本文中报告了包含作为[Cu-II(L-4)(Mecn)(2)(2)(CF 3 SO 3)(2)(2),[Cu-II(L-5)(L-5)(1)(1))的合成和表征2)(CF 3 SO 3)(2)](2),[Cu-II(L-6)(2)(Mecn)(CF 3 SO 3)](CF 3 SO 3)(3),[Cu-II(L-6)(2 )(H 2 O)(CF 3 SO 3)](CF 3 SO 3)2(ME2CO)(4),和[CUI4(L-1)(2)(2)(2)(2)(CF 3 SO 3)(2)](2)4( CF3SO3)8(ME2CO)(5),来自类似的氮基配体。这些化合物的均匀催化活性以及我们先前报道的衍生自类似配体的配位化合物(6-13),以众所周知的Cu(I)-Atalysed叠氮化物 - 炔环加油反应测试。最佳催化剂[Cu-II(L-1)(2)(2)(CF 3 SO 3)(2)](10)使反应活化,得到1,4-二取代的1,2,3-三唑,产率高达98%,没有需要还原剂。进行各种对照实验以优化方法和检查诸如配体变异,金属配位和环境的参数,以阐明催化系统的行为。

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