U 52 Unexpected products in the reactions of s-tetrazine hydrazones with enamines [Text] / G. L. Rusinov, R. I. Ishmetova, I. N. Ganebnuikh, O. N. Chupakhin, G. G. Aleksandrov, I. A. Litvinov, D. B. Krivolapov // Heterocyclic communications. - 2003. - Vol. 9, № 1. - P39-44 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: For the first time in the reactions of some 1,2,4,5-tetrazine hydrazones with enamines in addition to the expected products of Carbony-Lindsey reaction the unusual addition and cyclization products at cyclic and exocyclic nitrogen atom of tetrazine ring have been isolated. |