New active ruthenium(II) complexes based N3,N3′-bis(diphenylphosphino)-2,2′-bipyridine-3,3′-diamine and P,P′-diphenylphosphinous acid-P,P′-[2,2′-bipyridine]-3,3′-diyl ester ligands for transfer hydrogenation of aromatic ketones by propan-2-ol
作者:Murat Aydemir、Akin Baysal、Nermin Meric、Bahattin Gümgüm
DOI:10.1016/j.jorganchem.2009.04.015
日期:2009.7
material [Ru(η6-p-cymene)(μ-Cl)Cl]2 reacts with N3,N3′-bis(diphenylphosphino)-2,2′-bipyridine-3,3′-diamine, 1 and P,P′-diphenylphosphinous acid-P,P′-[2,2′-bipyridine]-3,3′-diyl ester, 2 ligands to afford bridged dinuclear complexes [C10H6N2NHPPh2-Ru(η6-p-cymene)Cl2}2], 3 and [C10H6N2OPPh2-Ru(η6-p-cymene)Cl2}2], 4 in quantitative yields. These bis(aminophosphine) and bis(phosphinite) based Ru(II) complexes
二聚体的原料的[Ru(η 6 - p -cymene)(μ-Cl)的CL] 2种发生反应与N3,N3'双(二苯基膦基)-2,2'-联吡啶-3,3'-二胺,1和P,P'-二苯基亚膦酸-P,P'-[2,2'-联吡啶] -3,3'-二烷基酯,2个配体以提供桥连的双核络合物[C 10 H 6 N 2 NHPPh 2 -Ru( η 6 - p -cymene)氯2 } 2 ],3和[C 10 H ^ 6 ñ 2 OPPh 2 -Ru(η 6 - p-cymene)Cl 2 } 2 ],4的定量收率。这些基于双(氨基膦)和双(次膦酸酯)的Ru(II)配合物可作为活性催化剂的前体,用于苯乙酮衍生物在2-丙醇中的转移加氢反应,尤其是4可以作为良好的催化剂,使相应的醇以99%的收率收率。 20分钟(TOF⩽280 h -1)。