126134-51-8Relevant articles and documents
Synthesis of New Zitterionic Pyridazino-as-triazines
Juhasz-Riedl, Zsuzsanna,Hajos, Gyoergy,Gacs-Baitz, Eszter,Kollenz, Gert,Messmer, Andras
, p. 1415 - 1419 (2007/10/02)
Reaction of the furopyrido-as-triazinium salt 1 with methyl hydrazine gave the zwitterionic 1-substituted pyrido-pyridazino-as-triazine 4.The neutral 2-substituted isomer 6 was formed when 1 was treated with 1-formyl-1-methyl-hydrazine.Reaction of 1 with 1-acyl-2-methylhydrazine gave rise to 1,3,4-trisubstituted zwitterionic derivatives of the same ring system.Efforts to synthesize aryl-substituted zwitterions led to simultaneous formation of the desired compound 12 and of a new ring transformation product, the pyrazolopyrido-as-triazine derivative 15.