4336-76-9

Upstream product

• 67-56-1 methanol 
• 2096-78-8 vinyldiphenylphosphine oxide 
• 7237-34-5 2-(hydroxyethyl)triphenylphosphonium bromide 
• 704894-39-3 C₃₈H₅₆Cl₂N₂O₅P₂RuSi 
• 55894-16-1 (2-methoxyethyl)triphenylphosphonium bromide 

Downstream Products

• 4336-75-8 β-diphenylphosphorylethyl ethyl ether 

Relevant academic research and scientific papers

Supported and non-supported ruthenium(II)/phosphine/[3-(2-aminoethyl) aminopropyl]trimethoxysilane complexes and their activities in the chemoselective hydrogenation of trans-4-phenyl-3-butene-2-al

Syntheses of four new ruthenium(II) complexes of the [RuCl 2(P)2(N)2] type using 2-(diphenylphosphino) ethyl methyl ether (PO) as ether-phosphine and triphenylphosphine (PPh3) as monodentate phosphine ligands in

Complexation of lithium and sodium cations with β-phosphorylate ethers, modelling terminal groups of organophosphorus podands. An experimental and theoretical study

The organophosphorus compounds o-Ph2P(O)C6H4OCH3 and Ph2P(O)C2H4OCH3, which are analogs of podands' terminal groups, have been synthesized.The thermodynamic characteristics of their complexation with LiNCS and NaNCS in acetonitrile were obtained by calorimetry.Molecular mechanics calculations on M+L complexes with different stoichiometries M+:L = 1:1, 1:2 and 1:4 (M+ = Li+, Na+) were performed, as well as on their solvates with a limited number of MeCN molecules.It has been shown that the experimental data could be explained by taking into account both the specific features of the complex structure and the solvent effects.The possibility of the application of additive schemes in the investigation of the complexation of polydentate molecules is discussed.

ALKALINE HYDROLYSIS OF β AND γ-FUNCTIONAL PHOSPHONIUM SALTS

A model study of alkaline hydrolysis of β- and γ-heterosubstituted phosphonium salts has been made and used as a synthetic method to obtain diphosphine dioxides affording additional coordination sites in an alkyl chain linked to phosphorus.After synthesis of the corresponding salts, anomalous fragmentations, such as inversion in cleavage selectivity or participation of the reaction solvent, have been pointed out in alkaline hydrolysis of β-functional phosphonium salts.A mechanism is suggested to account for the presence of all compounds detected.In the case of γ-functional phosphonium salts, the alkaline hydrolysis leads only to predicted compounds corresponding to the usual selective cleavage of one phenyl group.The results observed have been used to synthesize symmetric and asymmetric diphosphine dioxides with ether substituted side chains. - Key words: Phosphonium salt, phosphine oxide, diphosphine dioxides, alkaline hydrolysis, cleavage, mechanism.