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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...

    Yu. A. Volkova, M. A. Boichenko, V. V. Shorokhov… in Russian Chemical Bulletin (2024)

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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 ...

    A. E. Vartanova, A. Yu. Plodukhin, M. A. Boichenko… in Russian Chemical Bulletin (2022)

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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...

    A. O. Chagarovskiy, O. A. Ivanova, E. M. Budynina… in Russian Chemical Bulletin (2013)

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    Article

    Unusual reactions of vinyl ketones with tetranitromethane. The synthesis of 5-acyl-3-nitroisoxazoles

    Yu. A. Volkova, O. A. Ivanova, E. M. Budynina, E. B. Averina… in Russian Chemical Bulletin (2008)

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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...

    O. A. Ivanova, N. V. Yashin, E. B. Averina, Yu. K. Grishin… in Russian Chemical Bulletin (2001)