Ruthenium complexes of phosphino derivatives of carboxylic amides: Synthesis and characterization of tridentate P,E2 and tetradentate P,E3 (E = N,O) ligands and their reactivity towards [RuCl2(PPh3)3]
作者:Robert Gericke、Jörg Wagler
DOI:10.1016/j.poly.2016.08.041
日期:2017.3
synthesized to act as P,O (1a, 1b, 2a, 2b) or P,N (1c, 2c) chelating ligands in the ruthenium coordination sphere. Reactions of the ruthenium source [RuCl2(PPh3)3] with 1a,b,c and 2b,c result in the formation of all-cis bis-chelate complexes [RuCl2(PPh3)κ-P,O,O- or κ-P,N,N-(PhxP(L)3−x)] 3a,b,c (x = 1) and 4b,c (x = 0), respectively. Surprisingly, during the reaction of [RuCl2(PPh3)3] with 2a a P–N bond
摘要PhxP(L)3-x(x = 1(for 1),0(for 2); L = N-甲基苯甲酰胺基(La,1a,2a),邻苯二甲酰亚胺基(Lb,1b)的中性双足和三足体配体,2b),2-吡啶氧基(Lc,1c,2c))已合成为在钌配位领域中充当P,O(1a,1b,2a,2b)或P,N(1c,2c)螯合配体。钌源[RuCl2(PPh3)3]与1a,b,c和2b,c的反应导致形成全顺式双螯合物[RuCl2(PPh3)κ-P,O,O-或κ- P,N,N-(PhxP(L)3-x)]分别为3a,b,c(x = 1)和4b,c(x = 0)。令人惊讶的是,在[RuCl2(PPh3)3]与2a反应期间,发生了PN键断裂,有利于PO键的形成,并形成了络合物5a [RuCl(PPh3)2κ-P,O,O-(OP( La)2)]。用TlPF6处理反应混合物,得到the盐6 [Ph3P(Ph)C NMe] PF6。