Jäger Michael, Eriksson Lars, Bergquist Jonas, Johansson Olof
Department of Photochemistry and Molecular Science, Uppsala University, Box 523, 75120 Uppsala, Sweden.
J Org Chem. 2007 Dec 21;72(26):10227-30. doi: 10.1021/jo7015373. Epub 2007 Nov 15.
The synthesis of 4-substituted and 4-aryl-substituted 2,6-di(quinolin-8-yl)pyridines is described. The tridentate ligands were prepared via a palladium-catalyzed Suzuki-Miyaura cross-coupling reaction or via a one-step ring-forming reaction generating the central pyridine ring. X-ray crystal structures and 1H NMR shifts are discussed and compared to the corresponding data for a RuII bistridentate complex. Intramolecular stacking of two quinoline units in the RuII complex is suggested by 1H NMR data and also observed in the X-ray structure.
本文描述了4-取代和4-芳基取代的2,6-二(喹啉-8-基)吡啶的合成。通过钯催化的铃木-宫浦交叉偶联反应或通过生成中心吡啶环的一步成环反应制备了三齿配体。讨论了X射线晶体结构和1H NMR位移，并与RuII双齿配合物的相应数据进行了比较。1H NMR数据表明RuII配合物中两个喹啉单元存在分子内堆积，X射线结构中也观察到了这一现象。
