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Article
Competition of (3+2) annulation and (3+2) cycloaddition in the reaction of alkenes with donor-acceptor cyclopropanes
Lewis acid-initiated reaction of (het)aryl-substituted donor-acceptor cyclopropanes with styrenes was studied. The initiation of the process by tin(IV) chloride caused the reaction to proceed in two alternative d...
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Article
Ring expansion of donor—acceptor cyclopropanes bearing arylcarbamoyl group into 1,5-diarylpyrrolidin-2-ones
The rearrangement of 2,N-diaryl-1-carbamoylcyclopropanecarboxylates upon their treatment with titanium(iv) chloride was found to proceed as ring expansion affording 1,5-diaryl-2-oxopyrrolidine-3-carboxylates. In ...
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Article
3-Substituted Thietane-1,1-Dioxides: Synthesis, Antidepressant Activity, and in Silico Prediction of Their Pharmacokinetic and Toxicological Properties
3-Aryloxy- and 3-phenylsulfanylthietane-1,1-dioxides were synthesized by reacting 3,5-dibromo-1-(1,1-dioxothietan-3-yl)-1,2,4-triazole with sodium phenolates and thiophenolate. The 5-aryloxy- and 5-arenesulfon...
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Article
Reaction of donor-acceptor cyclopropanes with 1,3-diphenylisobenzofuran. Lewis acid effect on the reaction pathway
Reaction of donor-acceptor cyclopropanes with 1,3-diphenylisobenzofuran in the presence of lanthanide triflates, as well as CuOTf, Sn(OTf)2, SnCl2, ZnCl2, GaCl3, and MgI2, proceeds as a formal [3+4]-cycloaddition...
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Article
Reaction of dimethyl (S)-2-(p-tolyl)cyclopropane-1,1-dicarboxylate with acetonitrile
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Article
First synthesis of 2-alkyl- 5-aryl-3,3-bis(methoxycarbonyl)- 4,5-dihydropyrroles
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Article
Unusual reactions of vinyl ketones with tetranitromethane. The synthesis of 5-acyl-3-nitroisoxazoles
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Article
Specificity of the Reaction of Tetranitromethane with Alkenes in Nitromethane
Reactions of tetranitromethane with a number of di- and trisubstituted olefins in nitromethane were studied. Vinylcyclopropanes and phenylcycloalkenes reacted with tetranitromethane in an unexpected fashion, l...
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Article
Three-component Reactions of Tetranitromethane with Olefins
Three-component reactions of tetranitromethane with two different olefins taken in equimolar amounts are procedures fit for preparation of 3,3-dinitroisoxalidines of a mixed composition.
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Article
Formation of 2,2-Dinitropiperidin-4-ones in the Addition of Tetranitromethane to Bicyclobutylidene and Methylenecyclopropanes
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Article
Synthesis of nitrosubstituted triangulanes
The [1+2] cycloaddition of ethyl nitrodiazoacetate to various methylenecyclopropanes afforded 1-ethoxycarbonyl-1-nitropolyspirocyclopropanes. These compounds were used in the synthesis of first representatives...
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Article
Synthesis of β-Aminoethyl-substituted Pyrazoles
Methods have been developed for the synthesis of 3,5-dimethyl-4-(2-N-mono- and -disubstituted and also unsubstituted aminoethyl)pyrazoles from 1,1-diacetylcyclopropane.
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Article
Synthesis of New 3,4-Disubstituted Furazans
A series of new 3,4-substituted furazans was synthesized on the basis of the mutual transformations of the functional groups in halogenomethyl and bisacyl derivatives of furazan.
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Article
Electrophilic substitution and electronic structure of indolo[2,3-b]quinoxaline
The nitration and bromination of 6-methylindolo[2,3-b]quinoxaline take place in the 9 position. The reactivity indexes were calculated within the framework of the Hückel MO and CNDO (complete neglect of differ...