R 30 Reactions of 1,2,4,5-tetrazines with S-nuc / S. G. Tolshchina, R. I. Ishmetova, N. K. Ignatenko, A. V. Korotina, I. N. Ganebnuikh, V. A. Ol'shevskaya, V. N. Kalinin, G. L. Rusinov // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 985-991 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 1,2,4,5-TETRAZINES -- HETEROCYCLIC LEAVING GROUPS -- TETRAZINES Аннотация: The reactions of 3,6-disubstituted and azoloannulated 1,2,4,5-tetrazines containing heterocyclic leaving groups with S-nucleophiles were studied. The methods of introduction of functionalized thiols, including thiol derivatives of 1,7- and 1,2-dicarba-closo-dodecaboranes, into the tetrazine ring were developed. It was established for the first time that, instead of replacement of a leaving group in the tetrazine ring, the attack of S-nucleophile at the unsubstituted carbon atom occurs in the case of imidazo[1,2-b][1,2,4,5]tetrazines to form previously unknown products of nucleophilic substitution of the hydrogen atom \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (5), 985-991.pdf |