172703-18-3

Upstream product

• 59091-96-2 dichlorotetrakis(dimethylsulfoxide)ruthenium 
• 148934-67-2 N,N′-bis[o-(diphenylphosphino)benzylidene]ethylenediamine 

Downstream Products

• 189310-92-7 trans-RuCl2(κ4-N,N'-bis[o-(dipenylphosphino)benzylidene]-1,2-diiminoethane) 

Relevant academic research and scientific papers

Synthesis and characterization of iron(2+) and ruthenium(2+) diimino-, diamino- and diamido-diphosphine complexes. X-ray crystal structure of trans-RuCl2(P2N2C2H4) · CHCl3

The interaction of Ru(OAc)2(Ph3P)2 with one equivalent of N,N′-bis[o-(diphenylphosphino)benzylidene]ethylenediamine (P2N2C2) in refluxing dichloromethane gave trans-Ru(OAc)2(P2N2C2) · 2H2O (I) in moderate yield (63%) ; in refluxing-toluene, it gave a red solid which upon recrystallization in CHCl3 gave trans-RuCl2(P2N2C2) · 2H2O (II) in good yield (92%). Compound II could also be prepared in good yield (85%) via the interaction of RuCl2(DMSO)4 with one equivalent of P2N2C2 in refluxing toluene. The interaction of RuCl2(DMSO)4 with one equivalent of N,N′-bis[o-(diphenylphosphino) benzylidene]-1,3-diaminopropane (P2N2C3), N,N′-bis[o-(diphenylphosphino)benzyl] ethylenediamine (P2N2C2H4) and N,N′-bis[o-(diphenylphosphino)benzamido]ethane (P2N2C2-amide) in refluxing toluene gave trans-RuCl2(P2N2C3) (III), trans-RuCl2(P2N2C2H4) (IV) and trans-RuCl2(P2N2C2-amide) (V) in good yield, respectively. The interaction of Fe(ClO4)2 · 6H2O with one equivalent of P2N2C2 and P2N2C2H4 in refluxing acetonitrile gave trans-[Fe(P2N2C2)(CH3CN) 2](ClO4)2 (VI) and trans-[Fe(P2N2C2H4) (CH3CN)2](ClO4)2 (VII), respectively. Interaction of FeCl2 · 4H2O with one equivalent of N,N′-bis[o-(diphenylphosphino)benzylidene]-1,6-diaminohexane (P2N2C6) in refluxing gave trans-FeCl2(P2N2C6) (VIII). Complexes I-VIII have been fully characterized by analytical and spectroscopic methods. The structure of IV has been established by an X-ray diffraction study. Compound II could be reduced to compound IV with NaBH4 in ethanol and oxidized to V with aqueous H2O2 acetonitrile. Catalytic studies showed that both II and IV were effected catalysts for the hydrogenation of acrylic acid to propionic acid.

Synthesis, structure and catalytic activity of ruthenium diaminodiphosphine complexes

The reaction of N,N′-bis[o-(diphenylphosphino)benzylidene]-1,2-diaminoethane (L2) with one equivalent of RuCl2(PPh3)3 in dichloromethane at room temperature gave trans-RuCl2(PPh3)(κ3/