75616-93-2Relevant academic research and scientific papers
Condensed 1,2,4-Triazines, III
Ram, Vishnu Ji,Pandey, Hrishi Kesh
, p. 465 - 471 (1980)
Alkylation of 3-mercaptophenanthreno-1,2,4-triazine (1b) yielded the S-alkyl derivatives 2a-d.Amination of 1a afforded the 3-amino derivatives 3a-h.Reaction of 1a with hydrazine hydrate gave 3-hydrazinophenanthreno-1,2,4-triazine (4) which underwent cyclisation with nitrous, formic or acetic acids giving the phenanthreno-1,2,4-triazino-1,2,3,4-tetrazole (5) and the phenanthreno-1,2,4-triazino-3H-methyl-1,2,4-triazoles 6, 7.Compound 4 also reacted with methyl cyanoacetate, ethyl acetoacetate, ethoxymethylenemalononitrile, ethyl ethoxymethylencyanoacetate or acetyl acetone to yield the 3-(pyrazol-1-yl)-phenanthreno-1,2,4-triazines 8-12.
