153883-69-3

Basic information

• Product Name: Pd2(CH3)2(μ-Cl)2(triphenylarsine)2
• CAS NO: 153883-69-3
• Molecular Weight: 926.293
• Mol File: 153883-69-3.mol

Chemical Properties

• CAS DataBase Reference: Pd2(CH3)2(μ-Cl)2(triphenylarsine)2(CAS DataBase Reference)
• NIST Chemistry Reference: Pd2(CH3)2(μ-Cl)2(triphenylarsine)2(153883-69-3)
• EPA Substance Registry System: Pd2(CH3)2(μ-Cl)2(triphenylarsine)2(153883-69-3)

Safety Data

• Hazardous Substances Data: 153883-69-3(Hazardous Substances Data)

Upstream product

• 34876-57-8 [Pd2Cl2(μ-Cl)2(As(Ph3))2] 
• 594-27-4 tetramethylstannane 

Downstream Products

• 158594-38-8 [Pd2Me2(μ-H)(μ-bis(diphenylphosphino)methane)2]PF6 
• 191534-02-8 Pd(CH₃)(S₂CN(C₂H₅)2)(As(C₆H₅)3) 
• 191534-01-7 Pd(CH₃)(S₂CN(CH₃)2)(As(C₆H₅)3) 
• 191534-03-9 Pd(CH₃)(S₂COC₂H₅)(As(C₆H₅)3) 
• 191534-06-2 Pd(CH₃)(S₂P(C₆H₅)2)(As(C₆H₅)3) 
• 191534-04-0 Pd(CH₃)(S₂P(OC₂H₅)2)(As(C₆H₅)3) 
• 191534-05-1 Pd(CH₃)(S₂P(OCH₂CH₂CH₃)2)(As(C₆H₅)3) 

Relevant articles and documents

General route to halide-bridged organopalladium A-frame complexes and studies of reductive elimination from these bimetallic systems

Reactions of [Pd2Cl2(μ-dppm)2] with RMgX (R = Me, Et, Bu, Ph, C6H4Me-4) at low temperature, followed by addition of CBr4 and excess NH4PF6 or 1 equiv of TIPF6, provided halide-bridged organopalladium A-frame complexes of the form [Pd2R2(μ-X)(μ-dppm)2]PF6. Mixed metal complexes were obtained similarly starting from [PdCtCl2(μ-dppm)2]. Unsymmetrical A-frames of the type [Pd2(C6H2Me3-2,4,6)R(μ-Cl)(μ-d ppm)2]+ were generated reaction of [Pd(C6H2Me3-2,4,6) (dppm)2]+ (obtained by treatment of [PdCl2 (cod)] w mesitylmagnesium bromide at low temperature, followed by 2 equiv of dppm) with [Pd2R2(μ-Cl)2 (AsPh3)2]. The organopalladium A-frames did not react readily with CO, but the corresponding acyl derivatives [Pd2(COR)2(μ-Cl)(μ-dppm)2]PF6 were produced by carbonylation of [Pd2R2(μ-Cl)2(AsPh3)2] followed by addition of dppm (R = Me, Et, Bn). Thermal decomposition of [Pd2(CH2Ph)2(μ-Cl)(μ-dppm)2]Cl was found to be first order in A-frame and resulted in quantitative formation of [Pd2Cl2(μ-dppm)2] and 1,2-diphenylethane. The methyl and aryl complexes underwent both reductive elimination and hydrogen abstraction reactions. [Pd2Et2(μ-Br)(μ-ddpm)2]PF6 decomposed by β-hydride elimination and subsequent reductive elimination to yield ethene and ethane, whereas the butyl derivative gave both 1- and 2-butene. Acetic acid was formed when [Pd2(COMe)2(μ-Cl)(μ-dppm)2]PF6 was heated in dmso-d6 solution, but decarbonylation was the predominant process in dioxane. The molecular structures of [Pd2(CH2Ph)2(μ-Br)(μ-dppm)2] PF6·H2O, 2C6H6 and [Pd2Cl2(μ-Cl)(μ-dppm)2]OH· 0.5(CH3)2CO are also described.