1929-42-6

Upstream product

• 6954-83-2 diisopropyl α-chloromethylphosphonate 
• 71790-86-8 ethyl p-nitrophenyl chloromethylphosphonate 
• 393510-88-8 5,11,17,23-tetrakis(N,N-dimethylamino)methyl-4,6,10,12,16,18,11,24-octahydroxy-2,8,14,20-tetranonylcalix[4]arene 
• 90416-09-4 ethyl phenyl cloromethylphosphonate 

Relevant academic research and scientific papers

Reactivity of phosphorus esters in supramolecular systems based on surfactants containing an uracil residue and polyethylenimine

The reactivity of phosphorus esters with different hydrophobicities was studied in aqueous solutions of cationic surfactants containing an uracil residue, as well as in binary systems based on polyethylenimine. Pronounced substrate specificity was reveale

New amphiphilic multiheterocycle: Micelle-forming properties and effect on the reactivity of phosphorus acid esters

Supramolecular systems based on a novel tetracationic amphiphilic multiheterocycle have been studied by tensiometry, conductometry, pH-metry, spectrophotometry, and dynamic and electrophoretic light scattering. The critical micelle concentration of the system has been determined (0.4 mM), and the possibility of open and closed association models realization has been demonstrated. A high solubilizing ability of the aggregates toward hydrophobic guest species has been revealed. Micellar catalysts based on the new multiheterocycle have shown substrate specificity in the hydrolysis of phosphonates possessing different hydrophobicities.

Supramolecular Catalytic Systems Based on a Cationic Amphiphile and Sodium Polystyrene Sulfonate for Decomposition of Organophosphorus Pollutants

A supramolecular catalytic system for hydrolytic decomposition of toxic phosphorus acid esters has been obtained on the basis of a cationic surfactant with a morpholinium head group and sodium polystyrene sulfonate. Self-organization of the new binary catalytic system has been studied by tensiometry, conductometry, pH-metry, spectrophotometry, and dynamic and electrophoretic light scattering, and its aggregation thresholds have been determined. High solubilizing ability of the system with respect to a hydrophobic guest has been revealed. The morpholinium surfactant has been found to accelerate the hydrolysis of phosphonates up to 50 times in comparison to the reaction in water. The apparent hydrolysis rate constant in the presence of the polyelectrolyte decreases threefold due to reduction of the reactant binding constants.

Supramolecular catalytic system triton X-100-polyethyleneimine-La(III) for hydrolysis of phosphonic acid esters

The self-organization of systems based on the nonionic surfactant Triton X-100, polyethyleneimine, and lanthanum ions has been investigated. The micellar solutions of Triton-X-100 alone and the Triton-X-100-polyethyleneimine binary systems inhibit the hyd

Supramolecular catalytic systems based on bolaform pyrimidinic surfactants: the counterion effect

The catalytic effect of new amphiphilic pyrimidinic compounds with two ammonium head groups and different kinds of counterions, inorganic bromide anions and hydrophobic tosylate anions, was studied and compared with that of conventional cetyltrimethylammo

Regulation of the rate of hydrolysis of phosphorus acid esters in organized systems based on amphiphilic pyrimidinophanes

The aggregation and catalytic activity of supramolecular systems based on new macrocyclic dimeric surfactants (pyrimidinophanes) was studied both in the absence and in the presence of polyethyleneimine (PEI). It was found that the critical micelle concent

Supramolecular catalytic systems based on anionic amphiphiles and polyethyleneimine for hydrolytic cleavage of phosphorus ester bonds

Self-organization in individual and binary systems based on polyethyleneimine (PEI) and amphiphilic sulfonatocalix[4]resorcinarene was studied by conductometry, tensiometry, dynamic light scattering, and 1H NMR spectroscopy. The critical concen

Hydrolysis of phosphorus acid esters in the sodium bis(2-ethylhexyl) sulfosuccinate-n-nonane-polyethylene glycol-water supramolecular system before and after the percolation threshold

The kinetics of alkaline hydrolysis of O-ethyl O-p-nitrophenyl chloromethylphosphonate in a sodium bis(2-ethylhexyl)sulfosuccinate-n-nonane- polyethylene glycol-water reverse micellar system was studied in a wide range of concentrations of the surfactant

Control of the catalytic effect of cetyltrimethylammonium bromide micelles by the addition of background electrolyte and nonionic surfactant

The variation of the microscopic properties (surface potential, micropolarity, etc.) of the interface of cetyltrimethylammonium bromide micelles upon the addition of a background electrolyte or the nonionic surfactant Triton X-100 decreases the rates of i

Sodium dodecyl sulfate-polyethyleneimine-water system. Self-organization and catalytic activity

Concentration boundaries within which polymer-colloid structures exist in a sodium dodecyl sulfate-polyethyleneimine-water system were determined. The catalytic effect of this composition was found for the hydrolysis of phosphonic acid esters. The found acceleration of hydrolysis up to 25-fold is caused by reagent concentrating in a catalytic complex.