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Article
Effective Single-Reactor Synthesis of Dithiocarbamates and Investigation of Their Flotation Properties
The reaction of n-butylamine with carbon disulfide in the presence of NaOH followed by the reaction with 2-chloroethanol or benzоyl chloride leads to the formation of previously unknown S-organyl-N-butyldithiocar...
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Article
Reaction of (Z,E)-2-(Alkylsulfanyl)alk-2-en-4-ynals with N,N- and N,O-Binucleophiles
The condensation of 2-alkylsulfanyl-substituted 2-en-4-ynals with N,N- and N,O-binucleophiles gives the corresponding 1,3-perhydrodiazines, 1,3-imidazolidines, and 1,3-oxazolidines with the original combination o...
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Article
Acid–Base Membranes for Solid Polymer Fuel Cells
Acid–base membranes have been prepared by mixing a 1-vinyl-1,2,4-triazole polymer (PVT) with phenol-2,4-disulfonic acid (PDSA) in the presence of products of intermolecular crosslinking of polyvinyl alcohol an...
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Article
A Study of the Physicochemical Properties of Mechanically Treated Arglabin and Its Mechanocomposites Based on Arabinogalactan
In recent decades, researchers have increasingly turned to natural compounds and preparations created from them. Biologically active terpenoids, in particular, natural sesquiterpene lactones, are of great inte...
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Article
Synthesis of 5-Chloroisoxazoles Derived from 2,2-Dichlorovinyl Ketones
The reactions of 2,2-dichlorovinyl ketones with hydroxylamine hydrochloride give the corresponding oximes. The subsequent heterocyclization of the latter under the action of t-BuOK in t-BuOH results in selective ...
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Article
Oxidative Cross-Coupling of Cysteamine with Secondary Phosphine Chalcogenides: Aspects of Reaction Chemoselectivity
Cysteamine (2-aminoethanethiol) undergoes oxidative cross-coupling with secondary phosphine sulfides and phosphine selenides under mild conditions (room temperature, 2–5 h, CCl4/Et3N) to give products of monocoup...
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Article
Synthesis and Investigation of the Physicochemical Properties of Mechanocomposites of Arabinogalactan with Cyclophosphamide
To raise the efficacy and the selectivity of known medicinal substances (MS), methods have recently been developed to create systems for their directed transport in the body using various carriers. The problem...
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Article
Regio- and stereoselective reaction of sodium benzeneselenolate with 3-(trimethylsilyl)prop-2-ynamides
Sodium benzeneselenolate adds regio- and stereoselectively to 3-(trimethylsilyl)prop-2-yn-amides to give (Z)-3-(phenylselanyl)prop-2-enamides.
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Article
Synthesis of Polyiodides of N- and S-S-Acetonyl Derivatives of 2,2′-(Disulfanediyl)- and 2,2′-[Alkanediylbis(sulfanyl)]-bisbenzimidazolium
2,2′-(Disulfanediyl)- and 2,2′-[alkanediylbis(sulfanyl)]-bisbenzimidazoles react with aliphatic, aromatic, and heterocyclic α-iodoketones in the presence of elemental iodine without solvents, basic media, and ...
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Article
Synthesis of S- and S-S-Organosilicon Derivatives of 1,3-Benzothiazole-2-thiol
The reactions of 1,3-benzothiazole-2-thiol and di(1,3-benzothiazol-2-yl) disulfide with (iodomethyl)silanes containing exocyclic and endocyclic silicon atoms occurs in the presence of elemental iodine to affor...
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Article
Synthesis of Imidazolium and Benzimidazolium Triiodides
1,3-(Di)acetonylimidazolium and -benzimidazolium triiodides were synthesized in a one-pot fashion by reactions of imidazole, 3-(1H-imidazol-4-yl)prop-2-enoic acid, benzimidazole, benzimidazol-2-amine, and 2-ethyl...
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Article
Phosphorylation of Acetylaminophenols with Secondary Phosphine Chalcogenides: Synthesis of O-(Acetylamino)phenyl Chalcogenophosphinates
Oxidative cross-coupling of 4-acetylaminophenol (paracetamol) and its structural isomers (2- and 3-acetylaminophenols) with secondary phosphine chalcogenides at room temperature in the CCl4–Et3N system produced O
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Article
Reaction of Imidazoles and Triazoles with 1-(Benzotriazol-1-yl)-2-iodoethanone
Reactions of 2-methyl-1H-imidazole, 1H-benzimidazole, 4H-1,2,4-triazole, and 1H-benzotriazole with 1-(1H-benzotriazol-1-yl)-2-iodoethan-1-one in the absence of a base gave the corresponding N-mono- and N,N′-disub...
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Article
Alkylation of 2-Sulfanylbenzoxazole with α-Iodoketones in the Absence of Bases
Reaction of 2-sulfanylbenzoxazole with 1-iodopropan-2-one, 2-iodo-1-phenylethanone, and 2-iodo-1-(thiophen-2-yl)ethanone without solvent and bases afforded bis(benzoxazol-2-yl)disulfonium derivatives in a sing...
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Article
New Sorption Materials Based on Organosilicon Derivatives of Thiosemicarbazides
The synthesis of organosilicon derivative monomers and polymers characterized with sorption properties has been performed. The synthesized organosilicon polymers have been investigated as sorbents for heavy (H...
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Article
One-pot three-component green synthesis of [1H-(1,2,3-triazol-5-yl)methylidene] heterocycles based on element-substituted propynals
The one-pot three-component synthesis of polyfunctional bis-heterocyclic triazoles, namely, previously unknown 1H-1,2,3-triazolylmethylidenepyrimidines and -1,3-dioxanes, was performed for the first time in moder...
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Article
Synthesis of [3-(trimethylsilyl)prop-2-yn-1-yl] selenides
Efficient and selective methods have been developed for the synthesis of previously unknown organyl [3-(trimethylsilyl)prop-2-yn-1-yl] selenides, organyl prop-2-yn-1-yl selenides, and bis[3-(trimethylsilyl) pr...
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Article
Alkylation of 4,5-dihydro-1H-imidazole-2-thiol with iodomethylsilanes and -siloxanes
The alkylation of 4,5-dihydro-1H-imidazole-2-thiol with 1-iodomethyl(dimethyl)phenylsilane, 1-(iodomethyl)-1,1,3,3,3-pentamethyldisiloxane, and 1,3-bis(iodomethyl)-1,1,3,3-tetramethyldisiloxane involved iodine-ca...
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Article
Alkylation of 2-methylimidazole with iodomethylsilanes
2-Methyl-1,3-bis[(1-methylsilolan-1-yl)methyl]-1H-imidazolium triiodide, 1,3-bis{[dimethyl-(phenyl)silyl]methyl}-2-methyl-1H-imidazolium iodide and triiodide, and cyclic 3,3,5,5,10-pentamethyl-4-oxa-7-aza-1-azoni...
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Article
Reaction of benzimidazole and benzotriazole with iodomethyl{4-[iodomethyl(dimethyl)silyl]butyl}dimethylsilane
