(2) L = NCMe; (3) L = PPh3) and [PydimCl2Ru(L-L)RuCl2Pydim] (4) L-L = pyrazine; (5) L-L = 4,4′-bipyridine) have been synthesized from the corresponding (p-cymene)ruthenium dichloride dimer, pydim and ancillary ligands L and L-L, respectively. The Pydim-Ru(II) complexes have been employed as catalysts for the transfer hydrogenation of acetophenone in the presence of KOH using 2-propanol as a hydrogen
一系列中性的单核和双核Ru(II)配合物:[PydimCl 2 RuL](Pydim(1)
吡啶-2,6-二
亚胺;(2)L = NCMe;(3)L = PPh 3)和[PydimCl 2 Ru(LL)RuCl 2 Pydim](4)LL =
吡嗪;(5)LL =
4,4'-联吡啶是由相应的(p-cymene)二
氯化
钌二聚体,pydim和辅助
配体L和LL。Pydim-Ru(II)配合物已被用作催化剂,在KOH存在下,使用2-
丙醇作为氢源,进行
苯乙酮的转移加氢反应。
配体取代研究表明,含有L / LL和Pydim的复合物之间的反应性存在显着差异。在82°C下放置5分钟后,产率高达93%。