Effect of sodium dodecyl sulfate on the reactivity of copper(II) complexes with 2-dimethylaminomethylphenol
摘要:
The effects of the anionic surfactant sodium dodecyl sulfate on complex formation of 2-dimethylaminomethylphenol (1) with copper(II) in aqueous solutions and on the kinetics of the reactions of copper(II) complexes of 1 with 4-nitrophenylbis(chloromethyl)phosphinate (2) were studied. The reactivities of the complexes in these reactions are higher than that of 1 at all concentrations of SDS studied (0.010-0.200 mol L(-1)) with pH 7-9.
Protolytic properties and reactivity of aminomethylated calix[4]resorcarenes in reactions with esters of phosphorus acids
作者:I. S. Ryzhkina、L. A. Kudryavtseva、A. R. Mustafina、Yu. E. Morozova、E. Kh. Kazakova、K. M. Enikeev、A. I. Konovalov
DOI:10.1007/bf02496160
日期:1999.3
acid-base properties and the kinetics of reactions of aminomethylated calix[4]resorcarenes (AMC) withp-nitrophenyl esters of phosphorus acids in aqueous solutions of propan-2-ol (80 vol.% PriOH) were studied by potentiometry, UV spectrophotometry, and31P NMR spectroscopy. The effect of the length of the hydrocarbon radical and substituents at the nitrogen atom on the protolyticproperties and reactivity
用电位计、紫外分光光度法研究了氨甲基化杯[4]间苯二酚(AMC)与磷酸的对硝基苯酯在丙-2-醇(80 vol.% PriOH)水溶液中的酸碱性质和反应动力学和 31 P NMR 光谱。研究了烃基的长度和氮原子上的取代基对AMC的质子分解性质和反应活性的影响。所研究的反应分两个阶段进行。在第一阶段,形成磷酸化的 AMC,在第二阶段水解成相应的酸。
Effect of structural preorganization on the reactivity of carbazoylmethyl derivatives of pyrogallol and calix[4]pyrogallol
作者:T. N. Pashirova、M. V. Leonova、S. N. Podyachev、S. N. Sudakova、L. Ya. Zakharova、L. A. Kudryavtseva、A. I. Konovalov
DOI:10.1007/s11172-007-0381-9
日期:2007.12
The aggregation behavior of carbazoylmethyl derivatives of pyrogallol and calix[4]pyrogallol was studied by conductometry and dynamic light scattering in water-DMF media. The formation of mixed nanoaggregates in the presence of cationic surfactants was revealed. The effect of structural preorganization of these compounds on their reactivity in the acylation by 4-nitrophenylacetate and the catalytic
Aggregation and catalytic activity of 2-hydroxybenzylated polyethyleneimines in water-organic solutions
作者:G. A. Gaynanova、A. V. Yurina、S. S. Lukashenko、E. P. Zhil’tsova、L. Ya. Zakharova、L. A. Kudryavtseva、A. I. Konovalov
DOI:10.1007/s11172-010-0243-8
日期:2010.7
The aggregation of 2-hydroxybenzylated derivatives of polyethyleneimine in a water—DMF medium in the absence and in the presence of cationic surfactants was studied. The catalytic activity of modified polyethyleneimines in hydrolysis of phosphorus acid esters depends on the pH of the medium and increases with the formation of polymer-colloidal complexes. The polymer-colloidal complexes based on surfactants with two hydroxyethyl substituents in the head group have the maximum catalytic activity (increase in the reaction rate by up to three orders of magnitude).
The reaction of 2-aminomethylphenols and their copper(II) complexes with esters of phosphorus acids
作者:I. S. Ryzhkina、L. A. Kudryavtseva、K. M. Enikeev、V. I. Morozov、G. A. Boos、Yu. I. Sal'nikov
DOI:10.1007/bf02495075
日期:2000.8
Abstract2-Alkyl- and 2-dialkylaminomethylphenols (AMP) with different hydrophobic substituents at the nitrogen atom and their copper(II) complexes (CAMP) react with the esters of phosphorus acids in aqueous solutions of ethanol in two stages: phosphorylated AMP (PAMP) are formed at the first stage and then hydrolyzed to the corresponding acids. The reactivity of AMP and PAMP significantly decreases
Supramolecular systems based on poly(ethyleneimines) and calix[4]resorcinarenes with alkylphosphonate fragments. Aggregation and catalytic activity
作者:T. N. Pashirova、S. S. Lukashenko、E. M. Kosacheva、L. Z. Rizvanova、G. A. Gainanova、I. R. Knyazeva、A. R. Burilov、L. A. Kudryavtseva、A. I. Konovalov
DOI:10.1007/s11172-007-0145-6
日期:2007.5
Aggregation in poly(ethylenimine)-calix[4]resorcinarene-water-DMF systems was studied by the methods of conductometry and dynamic light scattering. The sizes (radii) of the aggregates formed and the critical micelle concentrations were determined. The catalytic activity for these systems in the hydrolisys of phosphorus acid esters was shown.