Ruthenium(II) complexes containing bis(2-(diphenylphosphino)phenyl) ether and their catalytic activity in hydrogenation reactions
作者： Ramalingam Venkateswaran , Joel T. Mague , Maravanji S. Balakrishna
DOI: 10.1021/IC061782L
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摘要: The half-sandwich complexes [(η5-C5H5)RuCl(DPEphos)] (1) and [{(η6-p-cymene)RuCl2}2(μ-DPEphos)] (2) were synthesized by the reaction of bis(2-(diphenylphosphino)phenyl) ether (DPEphos) with a mixture ruthenium trichloride trihydrate cyclopentadiene [(η6-p-cymene)RuCl2]2, respectively. Treatment DPEphos cis-[RuCl2(dmso)4] afforded fac-[RuCl2(κ3-P,O,P-DPEphos)(dmso)] (3). dmso ligand in 3 can be substituted pyridine, 2,2‘-bipyridine, 4,4‘-bipyridine, PPh3 to yield trans,cis-[RuCl2(DPEphos)(C5H5N)2] (4), cis,cis-[RuCl2(DPEphos)(2,2‘-bipyridine)] (5), trans,cis-[RuCl2(DPEphos)(μ-4,4‘-bipyridine)]n (6), mer,trans-[RuCl2(κ3-P,P,O-DPEphos)(PPh3)] (7), Refluxing [(η6-p-cymene)RuCl2]2 moist acetonitrile leads elimination p-cymene group formation octahedral complex cis,cis-[RuCl2(DPEphos)(H2O)(CH3CN)] (8). structures 1−5, 7, 8 are confirmed X-ray crystallography. catalytic activity th...
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