作者:Wen-Wen Xie、Yue Liu、Rui Yuan、Dan Zhao、Tian-Zhi Yu、Jian Zhang、Chao-Shan Da
DOI:10.1002/adsc.201500445
日期:2016.3.17
first direct homocoupling of unactivated electron‐deficient azaarenes in the presence of TMPMgCl (2,2,6,6‐tetramethylpiperidinylmagnesium chloride) and TMEDA (tetramethylethylenediamine). In this process, no transition metal was used while freely available air was employed as the oxidant. The investigated successful substrates included quinolines, isoquinoline, 3‐phenylated pyridines, and 2‐phenylated
这项工作建立了在TMPMgCl(2,2,6,6-四甲基哌啶基氯化镁)和TMEDA(四甲基乙二胺)存在下未活化的缺电子氮杂氮杂的第一个直接均偶联剂。在此过程中,不使用过渡金属,而使用自由可用的空气作为氧化剂。研究成功的底物包括喹啉,异喹啉,3-苯基化吡啶和2-苯基化喹喔啉,可提供中等至高收率。喹啉的均偶联有效地按比例增加至一克,产量高。此外,制备了6,6'-二甲基-2,2'-联喹啉铱配合物,并将其表征为有效的红色发光材料。