Catalytic reactivity of the complexes [Pd{(Ph2P)2N( Bu)-P,P´}X2], X = Cl, Br, I, in the Suzuki-Miyaura C−C coupling reaction: Probing effects of the halogeno ligand X− and the ligand's Bu group
作者:Polydoros-Chrysovalantis Ioannou、Cécile Arbez-Gindre、Maria Zoumpanioti、Catherine P. Raptopoulou、Vassilis Psycharis、Ioannis D. Kostas、Panayotis Kyritsis
DOI:10.1016/j.jorganchem.2018.10.006
日期:2019.1
palladium(II) complexes, [Pd(Ph2P)2N(tBu)-κ2P,P´}X2], X = Cl, Br, I, is presented. X-ray crystallography studies revealed a similar square planar PdP2X2 first coordination sphere among the three complexes. The catalytic reactivity of these complexes was tested in the Suzuki-Miyaura coupling reaction, showing that the X = Cl, Br, complexes are more active than the X = I analogue. The differences in the catalytic
的合成,以及分光和三个类似的钯(II)配合物的结构表征,[钯(PH 2 P)2 N(吨丁基)-κ 2 P,P '} X 2 ],X =氯,我介绍了Br。X射线晶体学研究表明,类似的方形平面PdP 2 X 2这三个复合体之间的第一个协调领域。在Suzuki-Miyaura偶联反应中测试了这些配合物的催化反应性,表明X = Cl,Br,配合物比X = I类似物更具活性。关于三种卤素的不同电负性和配体的强+ I诱导作用,讨论了这一系列配合物中催化活性的差异,以及与文献中报道的类似钯(II)催化剂的比较。吨卜基。