Phosphine Ligand‐Free Ruthenium Complexes as Efficient Catalysts for the Synthesis of Quinolines and Pyridines by Acceptorless Dehydrogenative Coupling Reactions
作者:Bin Guo、Tian‐Qi Yu、Hong‐Xi Li、Shi‐Qi Zhang、Pierre Braunstein、David J. Young、Hai‐Yan Li、Jian‐Ping Lang
DOI:10.1002/cctc.201900435
日期:2019.5.20
corresponding ligand in EtOH. Five Ru(II) complexes [LRu(DMSO‐κS)Cl2] (2 a: L=L1; 2 b: L=L2; 2 c: L=L3; 2 d: L=L4; 2bMe: L=L2Me) were formed by reducing the corresponding Ru(III) complex in refluxing EtOH. The latter complexes could also be prepared directly by refluxing Ru(DMSO)4Cl2 with the corresponding ligand in EtOH. These Ru(III) and Ru(II) complexes, especially 1 b/2 b, exhibited high catalytic
一系列游离膦-钌(III)/钌(II)NH的官能络合物Ñ Ñ Ñ钳配体表现出为仲醇的acceptorless脱氢偶联(ADC)具有优异的活性与2-氨基苄基或γ -氨基醇,以喹啉和吡啶。的Ru(III)配合物[LRuCl 3 ](L = 6-(3-R 1,5-R 2 -1H-吡唑-1-基)-N-(吡啶-2-基)吡啶-2-胺; 1 a:R 1 = R 2 = H(L1); 1 b:R 1 = R 2 = Me(L2); 1 c:R 1 = H,R 2 = CF 3(L3); 1 d:R 1= H,R 2= Ph(L4);1b Me:通过回流获得L = 6-(3,5-二甲基-1H-吡唑-1-基)-N-甲基-N-(吡啶-2-基)吡啶-2-胺(L2 Me))的RuCl 3 ⋅XH 2 O运用在EtOH相应配体。五种Ru(II)络合物[LRu(DMSO-κS)Cl 2 ](2 a:L = L1; 2