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Your search keyword '"Efremova M"' showing total 3 results
Start Over Author "Efremova M" Topic isoxazolidines
3 results on '"Efremova M"'

1. Reactions of 1-Vinyl-4,5-dihydro-1H-benzo[g]indole with Nitrones in Presence of Nickel(II) Perchlorate.

Author

Efremova, M. M., Ivanov, A. V., Panikorovskii, T. L., and Molchanov, A. P.

Subjects
*NITRONES, *NICKEL, *DIPYRROMETHANES, *RING formation (Chemistry), *MIXTURES, *ISOXAZOLIDINES, *INDOLE
Abstract

The reaction of 1-vinyl-4,5-dihydro-1H-benzo[g]indole with C-aryl-N-methylnitrones in the presence of nickel (II) perchlorate proceeds regioselectively to form a mixture of diastereomeric adducts of formal (3+3) cycloaddition, whereas the main products of the reaction with C,N-diarylnitrones are dipyrromethanes. [ABSTRACT FROM AUTHOR]

Published
2024
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2. Reaction of Aldonitrones with N-Phenyl-9,10-dihydro-9,10-ethenoanthracene-11,12-dicarboximide.

Author

Molchanov, A. P., Efremova, M. M., Stepakov, A. V., Panikorovskii, T. L., and Kostikov, R. R.

Subjects
*DOUBLE bonds, *DICARBOXIMIDES, *ISOXAZOLIDINES, *PYRROLIDINE, *RING formation (Chemistry), *STEREOSELECTIVE reactions
Abstract

Thermal addition of aldonitrones (C,N-diaryl- and N-aryl-C-arylcarbamoylnitrones) to the double bond of N-phenyl-9,10-dihydro-9,10-ethenoanthracene-11,12-dicarboximide yields heteropropellanes containing isoxazolidine and pyrrolidine fragments. The cycloaddition of C,N-diarylnitrones is stereoselective, and only one diastereoisomer is formed. [ABSTRACT FROM AUTHOR]

Published
2018
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3. Regio- and stereoselective cycloaddition of nitrones to 1-vinyl-4,5-dihydro-1 H-benzo[ g]indole.

Author

Molchanov, A., Sirotkina, E., Efremova, M., Kostikov, R., Ivanov, A., and Shcherbakova, V.

Subjects
RING formation (Chemistry), REGIOSELECTIVITY (Chemistry), NITRONES, ISOXAZOLIDINES, DIASTEREOISOMERS, STEREOCHEMISTRY
Abstract

Nitrones cycloaddition to 1-vinyl-4,5-dihydro-1 H-benzo[ g]indole proceeds regio- and steroselectively affording a single diastereomer of 5-(hetaryl-substituted)isoxazolidine. [ABSTRACT FROM AUTHOR]

Published
2015
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