220528-58-5

Upstream product

• 23582-02-7 bis(2-diphenylphosphinoethyl)phenylphosphine 
• 220528-51-8 Pd((C₆H₅)2P(CH₂)2P(C₆H₅)(CH₂)2P(C₆H₅)2)Br⁽¹⁺⁾*Br^(1-)=[Pd((C₆H₅)2P(CH₂)2P(C₆H₅)(CH₂)2P(C₆H₅)2)Br]Br 

Relevant academic research and scientific papers

Chelate ring-opening of Pd(II) triphos complexes: Ligand exchange, selective phosphine oxidation, and X-ray crystal structure of [Pd(Ph2P(CH2)2PPh(CH2) 2P(O)Ph2)2Br]Br

31P NMR studies show that chelate ring-opening of [Pd(triphos)Cl]+ , 4, (triphos = Ph2P(CH2)2PPh(CH2) 2PPh2) can be achieved in solution by reaction with excess of triphos with the formation of [Pd(Ph2P(CH2)2PPh(CH2)2PPh 2-P,P)2]2+. In the X-ray crystal structure, [Pd(triphos)Br]Br, 1 has a distorted square-planar geometry, and the oxidation of 1 with H2O2 gives rise to [Pd(Ph2P(CH2)2PPh(CH2) 2P(O)Ph2-P,P)2]2+, 2, which contains two bidentate ligands. The presence of two dangling arm phosphine oxide groups was confirmed by X-ray crystallography for the related complex [Pd(Ph2P(CH2)2PPh(CH2) 2P(O)Ph2-P,P)2Br]Br, 3, which contained square-pyramidal five-coordinated Pd(II).