BERDNIKOVA, Daria V.; ALIYEU, Tseimur M.; DELBAERE, Stéphanie; FEDOROV, Yuri V.; JONUSAUSKAS, Gediminas; NOVIKOV, Valentin V.; PAVLOV, Alexander A.; PEREGUDOV, Alexander S.; SHEPEL', Nikolay E.; ZUBKOV, Fedor I.; FEDOROVA, Оlga A.

doi:10.1016/j.dyepig.2016.11.053

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http://creativecommons.org/licenses/by-sa/

BERDNIKOVA, Daria V.
People's Friendship University of Russia [Moscow] = Rossijskij universitet družby narodov [Moskva] [RUDN University]
A.N. Nismeyanov Institute of Organoelement Compounds

ALIYEU, Tseimur M.
A.N. Nismeyanov Institute of Organoelement Compounds

DELBAERE, Stéphanie
Laboratoire Avancé de Spectroscopie pour les Intéractions la Réactivité et l'Environnement - UMR 8516 [LASIRE]

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Dyes and Pigments. 2017-04, vol. 139, p. 397 - 402

Elsevier

Resumen en inglés

The regio and stereoselective [2þ2] photocycloaddition of 15 crown 5 containing styrylheterocycles resulting in formation of only one cyclobutane isomer out of eleven possible is described. It was shown that the cycloaddition takes place solely in the case of the supramolecular preorganization of the reactive molecules provided by both p p stacking interaction of the heterocyclic fragments and sandwich type coordination of the crown ether residues by the barium cation. The results point out the importance of the supramolecular approach for the synthesis of cyclobutane derivatives with desired structure and conformation.< Leer menos

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Regio- and stereoselective [2+2] photocycloaddition in Ba2+ templated supramolecular dimers of styryl-derivatized aza-heterocycles

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