S 98 Synthesis of 1,2,4,5-tetrazines, symmetrically and unsymmetrically 3,6-disubstituted by N-nucleophiles [Electronic resource] / G. L. Rusinov, N. I. Latosh, I. N. Ganebnuikh, R. I. Ishmetova, N. K. Ignatenko, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2006. - Vol. 42, № 5. - P757-765 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: 6-R-3-(3,5-Dimethylpyrazol-1-yl)-1,2,4,5-tetrazines with aliphatic, cycloaliphatic, and aromatic amines, and also with NH-heterocycles undergo a nucleophilic substitution of the dimethylpyrazole moiety yielding symmetrically and unsymmetrically substituted 1,2,4,5-tetrazines. In the 3,6-diimidazolyl-and 3,6-dibenzotriazolyl derivatives reactions of nucleophilic substitution of the heterocyclic moiety also occur. In some cases an ipsosubstitution of amino, hydrazino, and azido groups is observed. \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2006, 42 (5), 757.pdf |