NHC-Palladium(II) Mononuclear and Binuclear Complexes Containing Phenylene-Bridged Bis(thione) Ligands: Synthesis, Characterization, and Catalytic Activities
作者:Wei-Guo Jia、Li-Li Gao、Zhi-Bao Wang、Jing-Jing Wang、En-Hong Sheng、Ying-Feng Han
DOI:10.1021/acs.organomet.0c00091
日期:2020.5.26
series of mono- and binuclear Pd(II) complexes with N-heterocyclic carbene (NHC) and phenylene-bridged bis(thione) (SCS) ligands were prepared and characterized by 1H and 13C NMR spectroscopy, IR, and mass spectrometry. The molecular structures of 1b, 2a, and 3b have been determined by the single-crystal X-ray diffraction method. The catalytic activities of the synthesized palladium complexes in the regioselective
制备了一系列具有N-杂环卡宾(NHC)和亚苯基桥联的双(硫酮)(SCS)配体的单核和双核Pd(II)配合物,并通过1 H和13 C NMR光谱,IR和质谱进行了表征。1b,2a和3b的分子结构已经通过单晶X射线衍射法确定。在温和的反应条件下,用氨-硼烷彻底研究了合成钯配合物在喹啉区域选择性还原成相应的1,2,3,4-四氢喹啉中的催化活性。观察到在相同条件下,双核Pd(NHC)配合物的活性高于相应的单核配合物。