Ionic iron(III) complex of aryloxo-linked bis(imidazolium)cations: efficient and recyclable catalyst for aryl Grignard cross-coupling of alkyl chlorides  

作　　者：Qingling Zhang Zhuang Li Hongmei Sun Qi Shen 

机构地区：[1]Key Laboratory of Organic Synthesis of Jiangsu Province,College of Chemistry, Chemical Engineering and MaterialsScience, Soochow University

出　　处：《Chinese Science Bulletin》2014年第34期4728-4734,共7页

基　　金：supported by the National NaturalScience Foundation of China(21172164);the Key Laboratory of Organic Chemistry of Jiangsu Province,the Priority Academic Program Development of Jiangsu Higher Education Institutions(PAPD);the Project of Scientific and Technologic Infrastructure of Suzhou(SZS201207)

摘　　要：A novel phenol-linked bis(imidazolium) salt,H3LCl2(L = O-4-C(CH3)3-C6H2-2,6-di[CH2{C(NCHCHNAr)}]2, Ar = 2,6-diisopropylphenyl, 1), was designed and used to prepare an ionic iron(III) complex [H2L][Fe Cl4](2).Complex 2 was a highly efficient catalyst for aryl Grignard cross-coupling of alkyl chlorides bearing b-hydrogens.Furthermore, complex 2 was reusable and could be reused in at least eight times without significant loss in catalytic activity.A novel phenol-linked bis（imidazolium） salt, H3LCl2 （L = O-4-C（CH3）3-C6H2-2,6-di[CH2{C（NCHCH- NAr）}]2, Ar = 2,6-diisopropylphenyl, 1）, was designed and used to prepare an ionic iron（III） complex [H2L][FeCl4] （2）. Complex 2 was a highly efficient catalyst for aryl Grignard cross-coupling of alkyl chlorides bearing β-hydrogens. Furthermore, complex 2 was reusable and could be reused in at least eight times without significant loss in catalytic activity.

关 键 词：高效催化剂 交叉偶联 铁(Ⅲ) 阳离子 烷基氯 咪唑 基格 络合物 

分 类 号：O641.4[理学—物理化学]