Инвентарный номер: нет. E 84 Ethyl cyanoacetate as 1,3-bifunctional reagent in the pyrimidine to pyridine ring transformations [Text] / O. N. Chupakhin, V. L. Rusinov, A. A. Tumashov, E. O. Sidorov, I. V. Karpin // Tetrahedron Letters. - 1992. - Vol. 33, N 25. - P3695-3696 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: By using of the double-labelled C(*)H(*)-CH2-COOEt compound it has been proved that transformation of 6-nitro-1,2,4-triazolo[1,5-a]pyrimidine into 2-triazolylamino-3-carbethoxy-5-nitropyridine proceeds with incorporation of the C-C-N fragment of ethyl cyanoacetate into the pyridine ring |