Published in Russian Chemical Bulletin
Diaryliodonium(iii) triflates were synthesized in a safe manner by the reaction of aryliodine(iii) diacetates ArI(OAc)2 with triflic acid (TfOH) in MeCN under mild exothermic conditions. This method provides access to a variety of diaryliodonium(iii) triflates, including derivatives with two different aryl substituents, with high purity.
Published in Russian Chemical Bulletin
A new cross-linking monomer, allyl-bis(benzocyclobuten-4-yl)methylsilane (ABCBMS), was synthesized and its physical properties were investigated. Copolymers of ABCBMS with triethylene glycol dimethacrylate (TGM-3) and bis(methacryloylethylene glycol) carbonate (BMCC-2) were obtained by photo- and thermal polymerization. The final cross-linking of t...
Published in Russian Chemical Bulletin
The reaction of dichloromethylphenylsilane with tert-butanol in the presence of a hydrogen chloride acceptor gave tert-butoxychloromethylphenylsilane. The product is stable at room temperature for a week, undergoing disproportionation upon more prolonged storage. Its reaction with 2-substituted ethanols XCH2CH2OH (X = Cl, MeNH, PhCH2N, PhN) in the ...
Published in Russian Chemical Bulletin
The properties of the FeBeta zeolite catalyst, MnCe/FeBeta composite catalyst, and FeBeta∥MnCe/FeBeta dual-zone catalytic system were studied in the selective catalytic reduction of nitrogen oxides with ammonia. The combination of the low-temperature (MnCe/FeBeta) and high-temperature (FeBeta) catalysts makes it possible to significantly improve th...
Published in Russian Chemical Bulletin
A one-pot procedure for the synthesis of isoindole-1,3-dione derivatives with functional groups based on 5-nitro-4-phenacylphthalonitriles using the Schmidt rearrangement was developed.
Published in Russian Chemical Bulletin
A synthetic approach to a novel type of phosphonium and mixed phosphonium-iodonium ylides containing a conformationally fixed phosphonium fragment is developed. New representatives of these families of chemical compounds based on cyclic phenoxaphosphinine were synthesized. One compound was structurally characterized by single-crystal X-ray diffract...
Published in Russian Chemical Bulletin
Cyclization of aroylbenzohydrazides in SOCl2 was used to obtain 2,5-diaryl-1,3,4-oxadiazoles, and to study their spectral-luminescent properties. Oxadiazoles with phenyl or 2-methoxyphenyl substituents at position 2 of the oxadiazole ring have a luminescence with a high quantum yield in polar and nonpolar solvents (λflmax = 378−424 nm, φ = 0.88−0.9...
Published in Russian Chemical Bulletin
The structures of a number of the products for the reaction of the NO donor (cation of the dinitrosyl iron complex [Fe(SC(NH2)2)2(NO)2] • Cl•H2O) with poly-N-vinylpyrrolidone in water were studied using the density functional method and QTAIM analysis. The quantum chemical calculations of the basic geometric and energy parameters of the formed comp...
Published in Russian Chemical Bulletin
A synthetic procedure for the preparation of sterically hindered catechols and o-quinones by the reaction of catechol with cyclohexene was developed. Novel cyclohexyl substituted catechols displayed remarkable stability during redox transformations and could be used as redoxactive ligands.
Published in Russian Chemical Bulletin
The sorption of lead by an impregnated type sorbent based on the phosphorylpodand, 1,8-bis[2-(diphenylphosphorylmethyl)phenoxy]-3,6-dioxaoctane, was studied. Sorption isotherms were plotted, as well as the data on kinetics, selectivity, and dynamics of sorption were obtained. The phosphorylpodand-based sorbent attains the sorption equilibrium of le...
