Synthesis and Properties of sym-Triazine Derivatives. 7. Synthesis of Pyridyl-Substituted 2-Amino- and 2,4-Diamino-sym-triazines
N-Substituted 2,4-diamino-6-pyridyl-sym-triazines were synthesized by cyclocondensation of pyridinecarboxylic acid esters with biguanides. 4,6-Disubstituted 2-amino-sym-triazines containing pyridyl residues were obtained by the reaction of pyridinecarboxylic acid nitriles with quanidine or of pyridinecarboxylic acid esters with N-imidoylguanidines.Aminotriazines of this type are also formed in the condensation of N-acylguanidines with nitriles or imino esters.The general principles of the fragmentation of 2-amino-4-dialkylamino-6-pyridyl-sym-triazines under the influence of electron impact were established.
Kelarev, V. I.,Karakhanov, R. A.,Bellul', M.,Ushakova, R. L.,Mikaya, A. I.
p. 550 - 555
(2007/10/02)
Syntheses of 2-substituted-4,6-diamino-8-triazines.
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Tsuji,Momona,Ueda
p. 799 - 805
(2007/10/04)
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