作者:Christina M. Standfest‐Hauser、Kurt Mereiter、Roland Schmid、Karl Kirchner
DOI:10.1002/ejic.200200695
日期:2003.5
Specific pyridine-based aldimines and aminals act as chelating ligands towards the RuCpL and RuTpL (Tp = hydrido trispyrazolylborate) fragments giving κ2N,N′-coordinated cyclic imine complexes. Under particular conditions, as elucidated in this paper, these complexes rearrange into cyclic aminocarbene complexes. Thus, the reaction of [RuCp(L)(CH3CN)2]PF6 (L = CH3CN, PMe3, SbPh3) with 1 equiv. of py−N=CHR
特定的基于吡啶的醛亚胺和缩醛胺作为 RuCpL 和 RuTpL(Tp = 氢化三吡唑硼酸酯)片段的螯合配体,产生 κ2N,N'-配位的环状亚胺复合物。在特定条件下,如本文所述,这些配合物会重排为环状氨基卡宾配合物。因此,[RuCp(L)(CH3CN)2]PF6(L = CH3CN、PMe3、SbPh3)与 1 当量的反应。py−N=CHR [R = Ph (苯基), Fc (二茂铁基), Np (萘基)] 提供环状氨基卡宾配合物 [RuCp(L)(=C(R)NH-py)]PF6,而当 L = PPh3、PiPr3 和 CO,反应在亚胺复合物 [RuCp(L)(κ2N,N'-py−N=CHR)]PF6 阶段停止。类似地,[RuTp(COD)Cl] (COD = 1,5-环辛二烯) 在升高的温度下也很容易与亚胺 py−N=CHR (R = Ph, pMeOC6H4, Np) 反应生成氨基卡宾复合物