Palladium-Catalyzed Triazolopyridine Synthesis: Synthesis Of 7-Chloro-3-(2-Chlorophenyl)-1,2,4-Triazolo[4,3-A]Pyridine

Chloramine-T is thermally unstable and heating of chloramines-T beyond the temperature disclosed in this procedure should not be conducted without further safety evaluation. Hydrazine should be handled in a fume hood as it is an animal carcinogen and has been identified it as a potential human carcinogen. In addition, anhydrous hydrazine is potentially explosive, especially in contact with metals, and should only be handled as its hydrate.