Binuclear oxalamidinate complexes (MePd)2(oxam) and homoleptic complexes of the type [(THF)nLi4(Me8)M2] and [(THF)4Li2(Ph4)M] (M=Pd, Ni): synthesis, structures and catalytic CC linking reactions
作者:Katja Lamm、Michael Stollenz、Mirko Meier、Helmar Görls、Dirk Walther
DOI:10.1016/s0022-328x(03)00528-x
日期:2003.9
[CH3Pd(oxam)PdCH3] were obtained by reaction of (COD)PdCH3(Cl) with the corresponding dilithium oxalic amidinates, prepared from LiBu and the oxalic amidines H2Y or H2Z (H2Y=N,N′-bis(2-pyridylethyl)-1,2-bis-(2,4,6-trimethylphenyl-imino)-ethane-1,2-diamine; H2Z=N,N′-bis(diphenylphosphino-3-propyl)-1,2-bis-(2,4,6-trimethylphenyl-imino)-ethane-1,2-diamine). Reaction of both 1 and 2 with an excess of LiCH3
双核络合物甲基1和2的类型的[CH 3 Pd(OXAM)PdCH 3 ]由(COD)PDCH的反应,得到3与相应的二锂草酸脒,从礼部制备和草酸脒(Cl)的H 2 Y或H 2 Z(H 2 Y =N,N′-双(2-吡啶基乙基)-1,2-双-(2,4,6-三甲基苯基-亚氨基)-乙烷-1,2-二胺; H 2 Z =N,N′-双(二苯基膦基-3-丙基)-1,2-双-(2,4,6-三甲基苯基-亚氨基)-乙烷-1,2-二胺)。两者的反应1和2与过量的LiCH的图3的结果导致形成二聚化合物[(THF)4 Li 4(CH 3)8 Pd 2 ](3)。类似地,制备了组成为[(THF)4 Li 2 M(C 6 H 5)4 ](M = Pd(4),Ni(5))的单体苯基配合物。配合物通过元素分析,质谱,1 H-NMR,13 C-NMR和7进行表征Li-NMR光谱法,并通过X射线单晶衍射分析固态。所有络合物均在平面正方形环境中包含金属。化合物1