L 79 Liquid-phase oxidation of anthracene by hydrogen-peroxide in the presence of heterogenized vanadyl acetylacetonate [Electronic resource] / S. Y. Men'shikov, A. V. Vurasko, L. A. Petrov, L. S. Molochnikov, A. A. Novoselova, Z. E. Skryabina, V. I. Saloutin> // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1992. - Vol. 41, N 4. - P619-622 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The synthesis of hetrogenized vanadyl acetylacetoonate was accomplished by alkylation of a chloromethylated styrene-divinylbenzene copolymer via activation by Co (II) complexes. The effect of heterogenization of the structure of the complexes and their catelytic properties in the peroxide oxidation of anthracene was investigated by kinetic studies and ERP spectroscopy \\\\Expert2\\nbo\\Russian Chemical Bulletin\\1992, 41 (4), 619.pdf |
Z 99 [4+2]-Cycloaddition of 3,6-bis(3,5-dimethyl-4-R-pyrazol-1-yl)-1,2,4,5-tetrazines with alkenes [Electronic resource] / G. L. Rusinov, R. I. Ishmetova, N. I. Latosh, I. N. Ganebnuikh, O. N. Chupakhin, V. A. Potemkin> // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2000. - Vol. 49, № 2. - P355-362 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: A number of 1,4-dihydropyridazines and pyridazines were prepared by the Diels-Alder reaction with an inverse electron demand from cyclic heterodiene systems, 3,6-bis(3,5-dimethyl-4-R-pyrazol-1-yl)-1,2,4,5-tetrazines, and some enamines as well as from 4-vinylpyridine, butyl vinyl ether, phenylacetylene, and acrylamide. The reaction of 3,6-bis(3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazine with styrene afforded 4,5-dihydropyridazine, which was readily oxidized by atmospheric oxygen to form the corresponding pyridazine. Electron-withdrawing substituents (Br or Cl) in the pyrazole rings accelerate [4+2]-cycloaddition. When heated, 1,4-dihydropyridazines, which were synthesized from tetrazines and enamines, eliminated amine to give pyridazines. The reactivities of tetrazines were evaluated by quantum-chemical methods. \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2000, 49 (2), 355.pdf |
E 27 Effect of heterocyclic derivatives of ferrocene on free-radical polymerization of methyl methacrylate and styrene [Text] / R. M. Islamova, O. I. Golovochesova, Yu. B. Monakov, I. A. Utepova, A. A. Musikhina, O. N. Chupakhin> // Polymer science. Series B. - 2010. - Vol. 52, № 11-12. - P637-647 : il. - Bibliogr. : p. 647 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): HETEROCYCLIC DERIVATIVES -- FERROCENE -- FREE-RADICAL POLYMERIZATION -- METHYL METHACRYLATE -- STYRENE Аннотация: The free-radical bulk homopolymerization of methyl methacrylate and styrene initiated by benzoyl peroxide or AIBN in the presence of heterocyclic derivatives of ferrocene is studied. It is shown that, in the case of the peroxide initiator, ferrocene derivatives form highly efficient initiation systems, which make it possible to polymerize methyl methacrylate at a high rate, to reduce the molecular mass of polymers, and to synthesize polymers with a high content of syndiotactic triads, while in the case of AIBN, such systems are not formed. \\\\Cserver\\Dist\\НБО\\Электронная библиотека_Библиогр1\\Polymer science. Series B\\2010, V. 52, N 11-12, p. 637-647.pdf |
A 10 A new approach to 4-arylstyrenes: microwave-assisted synthesis and photophysical properties / M. Z. Eddin, M. G. Pervova, E. F. Zhilina [et al.]> // Russian chemical bulletin. - 2021. - Vol. 70, № 11. - P2139-2144 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): STYRENE -- 4-VINYLBIPHENYL DERIVATIVES -- SUZUKi—MIYAURA CROSS-COUPLING -- FLUORESCENCE |