Cycloruthenated Complexes from Imine-Based Heterocycles: Synthesis, Characterization, and Reactivity toward Alkynes
作者:Luciano Cuesta、Tatiana Soler、Esteban P. Urriolabeitia
DOI:10.1002/chem.201201382
日期:2012.11.19
complexes. These ruthenacycles react with 3‐hexyne through an unexpected pathway, which involves the coupling of the original imino heterocycle and acetylene followed by dearomatization to afford fused hetero‐hydropyridyl ligands bonded to the Ru(p‐cymene)} organometallic moiety (i.e., 7 a–c and 8 a–c). These complexes represent, as far as we know, the first examples of this type of compound within the
新颖cycloruthenated络合物2 - ç,4 - ç,和6的a,b基于杂核已经通过一系列的基于杂环-亚胺的反应,合成具有[的RuCl(η 6 - p -cymene)} 2( μ Cl)的2 ]和Cu(OAc)2。已证明该方法对于噻吩,苯并噻吩,呋喃,苯并呋喃,吡咯和吲哚衍生物的环金属化是有效的。另外,甚至可以在相同的杂环上进行双环金属化过程,从而产生前所未有的双金属配合物。这些钌环通过一个意想不到的途径与3-己炔反应,这涉及原始亚氨基杂环与乙炔的偶联,然后进行脱芳香化作用,以提供与Ru(p- cymene)}有机金属部分(即7)结合的稠合杂氢吡啶基配体。a – c和8 a – c)。据我们所知,这些络合物代表了在环金属化背景下这类化合物的第一个实例,并且在溶液和固态下对其结构进行了详尽的分析。此外,这些独特的物种会与CuCl 2反应,从而促进重金属化和释放高度有价值的芳族稠合双杂环(即9