From Bis(imidazol‐2‐yl)methanes to Asymmetrically Substituted Bis(heterocyclo)methanides in Metal Coordination
作者:David‐R. Dauer、Ingo Koehne、Regine Herbst‐Irmer、Dietmar Stalke
DOI:10.1002/ejic.201601470
日期:2017.4.3
As an extension to the known symmetric bis(heterocyclo)methanes containing two identical heterocycles, new asymmetric ligand systems, based on benzoxazole, benzothiazole and 1-methylbenzimidazole, are presented. Furthermore, the syntheses and reactions of two new symmetrically substituted methane derivatives, containing either 1-methylimidazole or 1-methylbenzimidazole, are discussed. In this context
作为对包含两个相同杂环的已知对称双(杂环)甲烷的扩展,提出了基于苯并恶唑、苯并噻唑和 1-甲基苯并咪唑的新的不对称配体系统。此外,还讨论了含有 1-甲基咪唑或 1-甲基苯并咪唑的两种新的对称取代的甲烷衍生物的合成和反应。在这方面,首先,(1-MeNCNC2H2)2CH2和(1-MeNCNC6H4)2CH2,其次,(NCSC6H4)CH2(NCOC6H4)和(NCSC6H4)CH2(1-MeNCNC6H4)用作母体化合物。它们可以很容易地在中心亚甲基桥上去质子化,生成类似于 NacNac 的单阴离子结构,从而可以获得以下配合物:[Me2Al(1-MeNCNC2H2)2CH}]、[Me2Al(1-MeNCNC6H4)2CH} ], [Me2Al(NCSC6H4)CH(NCOC6H4)}], [Me2Ga(NCSC6H4)CH(NCOC6H4)}], [Me2Al(NCSC6H4)CH