作者:Erhong Hao、Zhaoyun Wang、Lijuan Jiao、Shaowu Wang
DOI:10.1039/b922043g
日期:——
A series of triazole-based N4 tetradenate ligands 1aâd are efficiently synthesized using CuI-catalyzed azide-alkyne âclickâ strategy and are readily coordinated to many metal ions (e.g. MnII, NiII, ZnII and FeII). The X-ray structures of the resultant metal-complexes (4aâd, 5a, 6a and 7a) reveal an octahedral mononuclear structure with two co-ligands bonded in cis sites and the two triazoles as nitrogen donors to the metal center. The MnII-complexes (4aâd) show efficient catalytic activities in the epoxidation of various aliphatic terminal olefins with peracetic acid, and feature with low catalyst loading, fast conversion and high yields.
使用CuI催化的叠氮-炔烃"点击"策略,高效合成了系列三唑基N4四面体配体1a–d,并可方便地与多种金属离子(如MnII、NiII、ZnII和FeII)配位。所得金属配合物的X射线结构(4a–d、5a、6a和7a)显示为具有两个共配体的八面体单核结构,且两个三唑作为氮供体与金属中心处于cis位。MnII配合物(4a–d)在过乙酸引发的多种脂肪族末端烯烃环氧化反应中表现出高效的催化活性,具有低催化剂负载量、快速转化和高产率的特征。