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Upstream product

• 59851-41-1 3-Chloro-phenanthreno<9,10-e>-1,2,4-triazine 
• 540-37-4 p-aminoiodobenzene 

Relevant academic research and scientific papers

Condensed 1,2,4-Triazines, III

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.