1439809-15-0

Upstream product

• 50-00-0 formaldehyd 
• 125995-76-8 pyridin-2-ylphosphine 
• 62-53-3 aniline 
• 23081-78-9 diethyl pyridin-2-yl-2-phosphonate 

Downstream Products

• 1586025-01-5 C₂₈H₃₀Cl₂N₄P₂Pt 
• 1586025-02-6 C₂₈H₃₀Cl₂N₄P₂Pd 
• 1586025-03-7 C₃₂H₃₀N₄O₄P₂W 

Relevant academic research and scientific papers

New functional cyclic aminomethylphosphine ligands for the construction of catalysts for electrochemical hydrogen transformations

Eight-membered cyclic functional bisphosphines, namely 1,5-di-aryl-3,7- di(2-pyridyl)-1,5-diaza-3,7-diphosphacyclooctanes (aryl=2-pyridyl, m-tolyl, p-tolyl, diphenylmethyl, benzyl, (R)-(+)-(α-methyl)benzyl), with 2-pyridyl substituents on the phosphorus atoms have been synthesized by condensation of 2-pyridylphosphine, formaldehyde, and the corresponding primary amine. The structures of some of these bisphosphines have been investigated by X-ray crystallography. The bisphosphines readily form neutral P,P-chelate complexes [(κ2-P,P-L)MCl2], cationic bis-P,P-chelate complexes [(κ2-P,P-L)2M]2+, or a five-coordinate complex [(κ2-P,P-L)2NiBr]Br. The electrochemical behavior of two of the nickel complexes, and their catalytic activities in electrochemical hydrogen evolution and hydrogen oxidation, including the fuel-cell test, have been studied. 1,5-Diaza-3,7-diphosphacyclooctanes with 2-pyridyl substituents on the phosphorus atoms have been synthesized by a Mannich-like condensation and readily form P,P-chelate complexes (see scheme). The catalytic activity of a cationic nickel(II) bis-P,P-chelate complex for electrochemical hydrogen evolution was studied.

Nickel(II) complexes of novel p,n-heterocycles based on pyridylphosphines

Novel 1,5-diaza-3,7-diphosphacyclooctanes were synthesized by Mannich-type condensation of pyridylphosphine, formaldehyde, and primary amines. Their interaction with Ni(II) salts containing different counterions was studied.