E 31 Egorov, I. N. The direct arylation of 1,3,5-triazin-2,4(1H,3H)-dione [Text] / I. N. Egorov, V. L. Rusinov, O. N. Chupakhin // Tetrahedron Letters. - 2010. - Vol. 51, № . - P1717-1718 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Direct introduction of non-activated arenes to 1,3,5-triazin-2,4(1H,3H)-dione in the presence of AlCl3 is described \\\\Expert2\\nbo\\Tetrahedron Letters\\2010, v.51, p.1717.pdf |
S 98 Synthesis and structure elucidation of novel 5-dinitromethyl-7-alkylamino-1,2,4-triazolo[4,3-a]-1,3,5-triazines [Electronic resource] / O. V. Golovina, V. V. Bakharev, E. V. Golovin, V. E. Parfenov, P. A. Slepukhin // Tetrahedron Letters. - 2013. - Vol.54, №29. - С. 3858-3861. - Bibliogr. : p. 3861 (21 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): STRUCTURE ELUCIDATION -- SYNTHESIS -- 1,3,5-TRIAZINES Аннотация: Synthesis of the novel potassium salts of 5-dinitromethyl-7-alkylamino-1,2,4-triazolo[4,3-a]-1,3,5-triazines 9a–c was performed by heating (in DMSO) 2-alkylamino-4-ethoxymethylidenehydrazino-6-dinitromethyl-1,3,5-triazines 8a–c, obtained by treating of the corresponding 2-alkylamino-4-hydrazino-6-dinitromethyl-1,3,5-triazines 5a–c with orthoformic ester. 2-Alkylamino-4-hydrazino-6-dinitromethyl-1,3,5-triazines were obtained by a sequential substitution of the methoxy groups of the potassium salt of 2,4-dimethoxy-6-dinitromethyl-1,3,5-triazine with an alkylamine (dimethylamine, morpholine, pyrrolidine) and hydrazine \\\\expert2\\NBO\\Tetrahedron Letters\\2013, v. 54, p. 3858.pdf |