New Method of Synthesis of β-Haloalkyl Alkynyl Sulfides: Reaction of Alkynesulfenamides with Olefins in the Presence of Phosphoryl Halides

Reactions of alkynelsufenamides with olefins (such as cyclohexene, norbornene, 1-hexene, 1-octene, allylbenzene, and styrene) in the presence of phosphoryl halides (POCl₃, POBr₃) afforded 70–95% of β-halo-substituted alkyl alkynyl sulfides. The reactions with cyclohexene and norbornene are characterized by trans stereoselectivity. Alkynylsulfenylation of terminal alkyl- and benzylacetylenes occurs in a regioselective fashion with predominant formation of the corresponding anti-Markownikoff adducts, while the addition to styrene yields halogen-containing sulfides according to the Markownikoff rule.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 7, 2005, pp. 977–982.Original Russian Text Copyright © 2005 by Beloglazkina, Belova, Dubinina, Garkusha, Buryak, Zyk.     

Macroheterocyclic Compounds with p-Diamines of the Diaryl Series

The reactions of indane-1,3-dione with 4,4′-diaminodiphenyl sulfone, 4,4′-diaminodiphenyl sulfide, and 4,4′-diaminodiphenyl ether were used to synthesize symmetrical macroheterocyclic compounds.__________Translated from Zhurnal Obshchei Khimii, Vol. 75, No. 6, 2005, pp. 1017–1021.Original Russian Text Copyright © 2005 by Berezina, Vorob’ev, Vorob’eva, Sadova.     

Influence of Surfactants on Structuring of Molding Blends Based on ZnO

The correlation between the surfactant sorption and structural mechanical properties of molding blends and granulated sorbents was studied.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 2, 2005, pp. 240–244.Original Russian Text Copyright © 2005 by Prokof’ev, Il’in, Basova.     

Kinetics and Mechanism of Reactions Occurring in Electrodeposition of Silver from Thiosulfate Solutions

The kinetics and mechanism of processes occurring in reduction of silver thiosulfate complexes on stationary and rotating disc electrodes and on fluidized glass-bead electrode were studied voltammetrically.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 1, 2005, pp. 86–89.Original Russian Text Copyright © 2005 by Shvab, Gur’yanova, Omel’chuk.     

Thermal Treatment and Hydrophobization of Components of Fire-Extinguishing Powders

Experimental data on the thermal treatment and hydrophobization of components of fire-extinguishing powdered formulations in an apparatus with active hydrodynamics of a two-phase flow are presented.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 4, 2005, pp. 681–683.Original Russian Text Copyright © 2005 by S. Sokol’skii, Fedosov, A. Sokol’skii, Barulin.     

Modification of the Alumina-Supported Platinum Catalyst of Reforming

The catalytic activity of alumina-supported platinum catalysts modified with rare earth metal (samarium, europium, gadolinium, ytterbium, yttrium) complexes in C₆ hydrocarbon reforming was studied.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 1, 2005, pp. 97–101.Original Russian Text Copyright © 2005 by Kuz’mina, Liventsev, Sevost’yanov, Dogadina.     

Synthesis of 5-Hydroxy-1,3-benzoxathiol-2-one and 2-Amino-1,3-benzothiazol-6-ol Derivatives from Chrysenequinonecarboxylic Acid

Diterpenoid 5-hydroxy-1,3-benzoxathiol-2-one and 2-amino-1,3-benzothiazol-6-ol derivatives were synthesized by reaction of methyl chrysenequinonecarboxylate with thiourea.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 6, 2005, pp. 849–852.Original Russian Text Copyright © 2005 by Tret’yakova, Flekhter, Galin, Shul’ts, Tolstikov.     

Synthesis of Carboxylated Monodisperse Latexes and Their Self-Organization in Thin Films

The capability of carboxylated latexes of poly(methyl methacrylate) and copolymers of styrene with glycidyl methacrylate or methacrylic acid for self-organization in thin films was studied in relation to the compositions of the dispersion medium and polymer and to the latex particle size.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 1, 2005, pp. 161–167.Original Russian Text Copyright © 2005 by Men’shikova, Shabsel’s, Evseeva, Shevchenko, Bilibin.     

Recovery of Nickel Ions from Dilute Solutions by Electrodialysis Combined with Ion Exchange

The possibility of using inorganic ion exchangers based on zirconium hydrophosphate and a weakly cross-linked cation-exchange resin for continuous purification of dilute nickel-containing solution by a combined method of electrodialysis and ion exchange was studied.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 3, 2005, pp. 418–424.Original Russian Text Copyright © 2005 by Dzyaz’ko, Rozhdestvenskaya, Pal’chik.     

Radical Copolymerization of Fluoroalkyl Methacrylates with Methyl Methacrylate

Lauryl peroxide initiated radical copolymerization of 1,1,3-trihydroperfluoropropyl methacrylate and 1,1,5-trihydroperfluoroamyl methacrylate with methyl methacrylate was studied. The kinetic parameters of copolymerization for these systems were determined at low degrees of conversion. Optically transparent copolymers with glass transition points within 50–80°C were synthesized.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 5, 2005, pp. 818–821.Original Russian Text Copyright © 2005 by Man’ko, Mel’nichenko, Bovkunenko, Shendrik, Fedoseeva, Goncharov.     

A Study of Mercury Dissolution in Aqueous Solutions of Sodium Hypochlorite

Dissolution of mercury in aqueous solutions of sodium hypochlorite at pH 5.9–8.5, the corresponding reaction order, and the mechanism of this process were studied. The ratio of the rates of mercury oxidation and sodium hypochlorite decomposition was analyzed.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 4, 2005, pp. 553-555.Original Russian Text Copyright © 2005 by Sizeneva, Val’tsifer, Strel’nikov.     

Thermally Curable Emulsion Binders for Mold Cores and Molds Based on Tall Pitch

Preparation of thermally curable emulsion binders for mold cores and molds using tall pitch was studied. Preparation conditions, composition, and colloid-chemical properties of the resulting emulsions were investigated.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 2, 2005, pp. 292–296.Original Russian Text Copyright © 2005 by A. Radbil’, Ismagilov, B. Radbil’.     

Correlations between electrochemical and spectral properties of alkyl-substituted diphthalocyanine lanthanide complexes

The electrochemical behavior and spectral properties of a series of symmetrical 2,3,9,10,16,17,23,24,2’,3’,9’, 10’,16’,17’,23’,24’-hexadecaalkyl-substituted lanthanide complexes (R₈Pc)₂Ln (R = H, Me, Et, Buⁿ; Ln = Eu, Dy, Lu) were studied. Regularities of changing the parameters under study were established, depending on the nature of lanthanide and substituents in the phthalocyanine macroligands. The position of the intervalence band of the complexes in the near-IR region depends on the effective distance between the macroligands and also on the electronic effect of the substituents. Correlations between the electrochemical and spectral properties of the complexes were found.__________Published in Russian in Izvestiya Akademii Nauk. Seriya Khimicheskaya, No. 1, pp. 184–189, January, 2005.     

Synthesis of Monodisperse Polystyrene Particles in the Presence of Sodium Dodecyl Sulfate and Carboxyl-containing Initiator

Emulsion polymerization of styrene in the presence of an anionic surfactant, sodium dodecyl sulfate, in a concentration close to the critical micellization concentration, was studied, as influenced by the pH of the initial reaction mixture and the content of the carboxyl-containing azoinitiator.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 6, 2005, pp. 1029–1033.Original Russian Text Copyright © 2005 by Men’shikova, Evseeva, Shabsel’s, Balanina, Sirotkin, Ivanchev.     

Voltamperometry of Aromatic Nitro Compounds Using a Multisensor System of Electrodes Modified with Poly(Arylene Phthalide Ketones)

Electrodes modified with poly(arylene phthalide ketones) were developed for the voltammetric determination of isomers of aromatic nitro compounds. A polynomial algorithm for processing analytical signals from a sensor array was tested in the analysis of ternary mixtures. It is shown that the sensor array offers promise for analyzing multicomponent mixtures in the case when analytical signals overlap.__________Translated from Zhurnal Analiticheskoi Khimii, Vol. 60, No. 6, 2005, pp. 576–581.Original Russian Text Copyright © 2005 by Sidel’nikov, Maistrenko, Kudasheva, Kuz’mina, Sapel’nikova, Gileva.Presented at the VI All-Russia Conference (with international participation) on Electrochemical Methods of Analysis (EMA-2004, Ufa, May 23–27, 2004).     

Processes in a Nickel-Zinc Battery with a Negative Electrode Containing a Calcium Hydroxide Additive

The influence exerted by a calcium hydroxide additive introduced into the negative electrode on the serviceability of a sealed nickel-zinc battery with a nickel oxide electrode fabricated from spherical nickel hydroxide on a foamed-nickel support was studied.__________Translated from Zhurnal Prikladnoi Khimii, Vol. 78, No. 3, 2005, pp. 428–432.Original Russian Text Copyright © 2005 by Arkhangel’skaya, Krasnobryzhii, Kas’yan, Loginova, Vinogradova.     

Kinetics of the Oxidation of Methyl Phenyl Sulfide by Hydrogen Peroxide in the Presence of Hydrocarbonate Anion

The oxidation of methyl phenyl sulfide in water and water-alcohol mixtures takes place both by a noncatalytic mechanism and with the participation of hydrogen peroxide as catalyst; in the presence of ammonium hydrocarbonate it takes place by a mechanism involving HCO ₄ ⁻ as a more active oxidant than hydrogen peroxide (>100 times). In water-alcohol media (ethylene glycol, isopropyl alcohol, tert-butanol) the rate decreases in the order H₂O > EG > IPA > TBA. The reactivity of organic sulfides varies in the following way: MeSPh ≈ EtSPh << Et₂S. The results were interpreted from the standpoint of a molecular mechanism of oxidation of the sulfide with H₂O₂ and HCO ₄ ⁻ through a polar transition state, containing the HOX molecule (X = H, OH, OR) as acid-base catalyst.__________Translated from Teoreticheskaya i Eksperimental’naya Khimiya, Vol. 41, No. 2, pp. 94–99, March–April, 2005.     

Preparation of Aqueous Colloidal Dispersion of C<Subscript>60</Subscript> Fullerene

A method for preparing aqueous colloidal dispersions of C₆₀ fullerene free of organic solvents is proposed. The size of dispersed particles is determined using the turbidity spectra. A solvatochromic effect is observed upon the addition of a C₆₀ solution in toluene to a water-acetone mixture.__________Translated from Kolloidnyi Zhurnal, Vol. 67, No. 4, 2005, pp. 575–576.Original Russian Text Copyright © 2005 by Tseluikin, Tolstova, Gun’kin, Pankst’yanov.     

Ion-Chromatographic Determination of Borates and Sulfides with the Use of a Developing Column

Aspects of the sensitive and selective determination of borates and sulfides were considered. A method was proposed for substantially increasing the sensitivity of the ion-chromatographic determination of weak acids by their conversion into corresponding salts on an auxiliary column with a cation exchanger in the K form. It was demonstrated that the detection limit of the cations under consideration can be decreased to 5–10 µg/L and the selectivity of the method is sufficient for the determination of trace borates in strongly mineralized waters like sea water.__________Translated from Zhurnal Analiticheskoi Khimii, Vol. 60, No. 8, 2005, pp. 832–836.Original Russian Text Copyright © 2005 by Kolotilina, Dolgonosov.     

Synthesis,Structure, and Physicochemical Characteristics of Thiols

Data on thiols structure, physicochemical characteristics, and synthetic procedures for preparation are systematized and generalized.__________Translated from Zhurnal Organicheskoi Khimii, Vol. 41, No. 5, 2005, pp. 647–664.Original Russian Text Copyright © 2005 by Koval’.