120914-99-0Relevant academic research and scientific papers
Gas-phase thermolysis of condensed-1,2,4-triazines: interesting routes toward heterocyclic ring systems
Al-Awadi, Hanan,Ibrahim, Maher R.,Al-Awadi, Nouria A.,Ibrahim, Yehia A.
, p. 12948 - 12953 (2008/03/28)
Gas-phase thermolysis of thieno[2,3-e][1,2,4]triazines gave benzonitrile, isothiazole, pyridazine, and thieno[2,3-d]thiazole derivatives. Similar transformation of benzo[1,2,4]triazine and phenanthro[9,10-e][1,2,4]triazine derivatives into their corresponding condensed thiazoles has been achieved by heating at 350 °C with sulfur. A mechanism for these pyrolytic transformations was proposed.
Photochemistry of N-Heterocycles. Part 3. Synthesis and Photochemistry of some New Dihydro-1,2,4-triazines and their Quaternary Salts
Nagy, Jozsef,Rapp, Rudolf,Alexovics, Maria,Doepp, Dietrich,Nyitrai, Jozsef,et al.
, p. 661 - 666 (2007/10/02)
Several new dihydro-1,2,4-triazines, 1b, 4, 5, 16 and 19, have been synthesized and their structures unambiguously determined.The existence of 1,2- and 1,4-dihydrotriazines, 20 and 22, described in the literature was ruled out.Irradiation of the aromatic triazines 6 and 15 and the novel quaternary dihydro-1,2,4-triazinium salts 4, 5, 19 furnished new evidence for both the reduction pathways and the mechanism of ring-contraction reactions.
PHOTOCHEMISTRY OF N-HETEROCYCLES. PART 1. SYNTHESIS AND PHOTOCHEMISTRY OF SOME 2(4),5-DIHYDRO-1,2,4-TRIAZINES. X-RAY MOLECULAR STRUCTURE OF 1-(4-METHYL-3,5,6-TRIPHENYL-1,4,5,6-TETRAHYDRO-1,2,4-TRIAZIN-6-YL)ETHANOL
Nagy, Jozsef,Nyitrai, Jozsef,Kolonits, Pal,Lempert, Karoly,Gergely, Anna,et al.
, p. 3267 - 3274 (2007/10/02)
Ethanolic solution of the hydrochlorides of the mostly new 2(4),5-dihydro-1,2,4-triazines (1)-(4) were irradiated with a high-pressure mercury immersion lamp (λ>=300 nm).The salts (1a)-(3a) underwent reductions, ring contractions, and dehydrogenations upo
