The imidazo{[4,5-f][1,10]-phenanthrolin}l-2-ylidene and its palladium complexes: Synthesis, characterization, and application in C-C cross-coupling reactions
作者:Lütfiye Gök、Salih Günnaz、Zarife Sibel Şahin、Levent Pelit、Hayati Türkmen
DOI:10.1016/j.jorganchem.2016.11.013
日期:2017.1
1,3-dibutyl-1H-imidazo[4,5-f][1,10]phenanthrolinium iodide, L5.2HI ligand and their mono-, di-, tri-, tetra-nuclear palladium(II) complexes (5.HPF6, 6–8) were synthesized and characterized by elemental analysis, FTIR, UV–visible and NMR spectroscopy. In addition, the complexes (5.HPF6, 6–8) were determined by mass spectrometry (MALDI). The ligand L5.2HI was determined by X-ray diffraction. The complexes
1,3-二丁基-1 H-咪唑并[4,5-f] [1,10]碘化菲鎓,L 5 .2HI配体及其单,二,三,四核钯(II)络合物(5.HPF 6,6-8)的合成和表征通过元素分析,FTIR,紫外-可见和NMR光谱。此外,复合物(5.HPF 6,6-8)通过质谱法(MALDI)来确定。配体L 5 .2HI通过X射线衍射测定。配合物(5.HPF 6,6-8)在高温下在Suzuki-Miyaura和Mizoroki-Heck反应中进行了测试。通过NMR和GC分析监测催化剂的活性。我们发现,与单核衍生物相比,多核络合物显示出更好的活性,因此提出金属部分的增加导致交叉偶联反应活性的增加。