O-57 One-Step Heterylation at the Upper Rim of Calix[4]arene with 1,2,4-Triazin-5(2H)-ones [Electronic resource] / D. G. Beresnev, N. A. Itsikson, O. N. Chupakhin, V. N. Charushin, M. I. Kodess, A. I. Butakov, G. L. Rusinov, Yu. Yu. Morzherin, A. I. Konovalov, I. S. Antipin // Journal of Organic Chemistry. - 2006. - Vol. 71, № 21. - P8272-8275 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A convenient way to modify calix[4]arenes based on the direct C-C coupling reaction of their phenol moiety with 1,2,4-triazines has been advanced, and the ability of modified calixarenes to provide transport of La3+ and Ga3+ cations through organic membranes has been examined. ?? \\\\Expert2\\nbo\\Journal of Organic Chemistry\\2006, v.71, N 21, p.8272.pdf |
M 78 Modification of macrocyclic compounds by azaheterocycles [Text] / N. A. Itsikson, G. L. Rusinov, D. G. Beresnev, O. N. Chupakhin // Heterocycles. - 2003. - Vol. 61, № 31. - P593-637 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Synthesis, modification and properties of macrocycles, such as crown ethers, their open-chain analogues, i.e. podands, calixarenes and resorcinarenes, having azaheterocyclic fragment are discussed.???? |
T 44 The first case of direct coupling of heterocycles with calixarenes. Reaction of resorcinarenes with 1,2,4-triazin-5(2H)-ones [Text] / O. N. Chupakhin, G. L. Rusinov, N. A. Itsikson, D. G. Beresnev, I. L. Nikolaeva, A. R. Burilov, A. I. Konovalov // Heterocyclic Communications. - 2004. - Vol. 10, № 1. - P15-18 : ил. - Библиогр.: с. 18 (8 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): CALIXARENE -- CARBON -- RESORCINOL DERIVATIVE -- TRIAZINE DERIVATIVE Аннотация: A convenient method for an one-step coupling of resorcinarenes with 3-R-1,2,4-triazin-5(2H)-ones, involving nucleophilic addition to the unsubstituted carbon atom C-6 of triazine ring, has been worked out. |
S 98 Synthesis of new meso-substituted heterocyclic calix[4]arenes via SN H approach [Electronic resource] / M. V. Varaksin, I. A. Utepova, G. N. Chupakhin, V. N. Charushin // Macroheterocycles . - 2013. - Vol.6, №4. - С. 308-314. - Bibliogr. : p. 313-314 (42 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): AZINES -- C-C COUPLING -- CALIX[4]ARENES Аннотация: An effective synthetic approach to heterocyclic derivatives of meso-substituted calixarenes has been suggested by using the SN H methodology based on the direct, non-catalyzed by transition metals, C-C coupling of 1,2,4-triazines with the lithium salts of tetramethoxycalix[4]arenes |
S 10 S-N(H) Approach in the Synthesis of meso-Substituted Heterocyclic Calix[4]arenes / K. A. Khlamkin, M. V. Varaksin, I. A. Utepova, O. N. Chupakhin, V. N. Charushin // Уральский научный форум "Современные проблемы органической химии". XVII Молодежная школа-конф. по органической химии, Екатернинбург, 8-12 июня 2014 г. : сб. тез. - Екатеринбург, 2014. - С. 236. - Bibliogr. : p. 236 (4 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): HETEROCYCLES -- HETEROCYCLIC COMPOUNDS -- CALIXARENES |
Methodology of C(sp2)-H functionalization in mono- and diazine N-oxides in the synthesis of heterocyclic meso-substituted calixarenes [Electronic resource] / M. V. Varaksin, O. N. Chupakhin, V. N. Charushin, K. A. Khlamkin, I. A. Utepova // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2015. - Vol. 6, № 5. - С. 1093-1096 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): MESO-SUBSTITUTED CALIXARENES -- MESO-SUBSTITUTED AZINYLCALIXARENES -- METAL CATALYSIS Аннотация: Earlier unknown meso-substituted azinylcalixarenes were obtained by a direct cross-coupling of 2-lithium-25,26,27,28-tetramethoxycalix[4]arenes with mono- and diazine N-oxides without transition metal catalysis. \\\\expert2\\nbo\\Russian Chemical Bulletin\\2015, 64 (5), 1093-1096.pdf |
Meso-functionalization of calix[4]arene with 1,3,7-triazapyrene in the design of novel fluorophores with the dual target detection of Al3+ and Fe3+ cations / T. D. Moseev, I. A. Lavrinchenko, M. V. Varaksin [et al.] // RSC Advances. - 2021. - Vol. 11, № 11. - P6407-6414 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A meso-functionalization strategy has successfully been applied to the synthesis of novel 1,3,7-triazapyrene derivatives of calixarenes. The key synthetic step in these transformations providing the direct C–C bond formation is nucleophilic substitution of hydrogen (SNH) in 1,3,7-triazapyrene. General photophysical characteristics for these macrocyclic compounds, as well as features in emission properties upon addition of various metal cations have been elaborated. Studies using NMR spectroscopy have also shown a mutual effect of both calix[4]arene and 1,3,7-triazapyrene moieties on the coordination process. The complex stoichiometry and binding constants for Al3+ and Fe3+ guests have been explored with titration experiments. |