536977-56-7Relevant academic research and scientific papers
Formation of (σ-alkenyl)- and (μ-vinylidene)palladium and -platinum complexes by oxidative addition of 4,4-dichloro-1,1 -diphenyl-2-azabuta-1,3-diene - The molecular structure of an unusual asymmetric (μ-vinylidene)Pd-Pd complex
Knorr, Michael,Schmitt, Gerard,Kubicki, Marek M.,Vigier, Estelle
, p. 514 - 517 (2003)
4,4-Dichloro-1,1-diphenyl-2-azabuta-1,3-diene (1) oxidatively adds to [Pd(PPh3)4] and [Pt(C2H4)(PPh3)2] giving rise to the σ-alkenyl complexes trans-[MCl{[C(Cl)=C(H)-N= CPh2]}(PPh3)2] (2a: M = Pd; 2b: M = Pt). When 1 is treated with [Pd(PPh3)4] in a 1:2 ratio in refluxing toluene, the dimetallic μ-vinylidene complex [(PPh3)ClPd{μ- [C=C(H)-N= CPh2]}PdCl(PPh3)2] (3) is formed. In this fluxional compound, a PPh3 ligands migrates in a reversible manner between the two Pd centers. Substitution of the PPh3 ligands of 3 by 2 equiv. of Ph2PCH2PPh2 affords the A-frame complex [ClPd(μ-dppm)2{μ-[C=C(H)-N=CPh2]}PdCl] (4). Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003.
