亚胺膦钌配合物RuCl_2P_2N_2的合成和催化性能

Synthesis and Hydrogenation Activity of Diiminodiphosphine Ruthenium Complex RuCl 2P 2N 2

ＲｕＣｌ２（Ｐｈ３Ｐ）４或ＲｕＣｌ２（ＤＭＳＯ）４在甲苯中直接与等摩尔的亚胺膦配体Ｎ，Ｎ－双－［邻－（二苯基膦苯亚甲基）］乙二胺（Ｐ２Ｎ２）在甲苯中回流反应，高产率地合成了反式配位的双亚胺双膦钌配合物ｔｒａｎｓ－ＲｕＣｌ２Ｐ２Ｎ２．在温和条件下，该配合物作为新型催化剂有效地催化α，β－不饱和酸和几种功能团烯烃的选择加氢反应．讨论了可能的催化活性物种．

The trans form of the title complex was synthesized in high yield by interaction of equimole RuCl 2(Ph 3P) 4 or RuCl 2(DMSO) 4 (DMSO=dimethylsulfoxide) with P 2N 2 (i.e.= N,N  bis[ o (diphenylphosphine benzylidene)]ethylene diamine) in refluxing toluene. The complex has been investigated as catalyst for selective hydrogenation of α,β unsaturated acids and some functionalized olefins. The hydrogenation catalytic activity was observed as follows: styrene>acrylic acid>benzaldehyde>salicyl aldehyde>cyclohexanone>furfural>methylacrylic acidacetophenone. The effect of addition of NH 4PF 6 or AgNO 3 as promotor has also been studied.