Half-sandwich complexes of group 9 metals with N,Nʹ-ligands for CF3-carbenoid alkylation of N-(pyrimidin-2-yl)indole
作者:Sofya S. Kuvshinova、Yulia V. Nelyubina、Vladimir A. Larionov、Daria V. Vorobyeva、Sergey N. Osipov、Dmitry A. Loginov
DOI:10.1016/j.jorganchem.2021.121899
日期:2021.8
The complexes [CpM(N,Nʹ-ligand)Br]PF6 (M = Rh, Ir; N,Nʹ-ligand = 2,2′-bipyridyl, 1,10-phenanthroline) were synthesized by reactions of bromides [CpMBr2]n with 2,2′-bipyridyl or 1,10-phenanthroline followed by a counterion exchange. The replacement of cyclooctadiene in [CpIr(cod)I]I3 with N,Nʹ-ligands leads to complexes [CpIr(N,Nʹ-ligand)I]I3 (N,Nʹ-ligand = 2,2′-bipyridyl, 1,10-phenanthroline). The
的配合物[CPM(N,N'-配体)BR] PF 6(M =铑,铱; N,N'-二-配体= 2,2'-联吡啶,1,10-菲咯啉)的溴化物的反应[CpMBr合成2用2,2'-联吡啶或1,10-菲咯啉] n,然后进行抗衡离子交换。用N,Nʹ-配体取代[CpIr(cod)I] I 3中的环辛二烯,形成配合物[CpIr(N,Nʹ-配体)I] I 3(N,Nʹ-配体= 2,2'-联吡啶, 1,10-菲咯啉)。[CpRh(2,2'-联吡啶基)Br] PF 6,[CpIr(2,2'-联吡啶基)I] I 3和[CpIr(1,10-菲咯啉)Br] PF 6的结构通过X射线衍射测定。制备的化合物以及相关的三(吡唑基)硼酸酯衍生物[CpCoTp] PF 6和[Cp * MTp] PF 6(M = Rh,Ir)有效催化N-(嘧啶-2-基)吲哚的烷基化用3,3,3-三氟-2-重氮丙酸甲酯选择性地在吲哚部分的C 3位置引入CF