Abstract The reaction of the aminopyrazole 1 with benzenesulfonyl chloride, arenediazonium salt, chloroacetyl chloride, ethoxy methyleneamlononitrile and with ethyl 2- cyano-3-ethoxyacrylate gave the substituted 3-methyl-1-phenylpyrazole 2–5a, b. Compound 5b was cyclized to 6 and to 7 by treating it with AlCl 3 and with POCl 3, respectively. Compound 6 converted to 7 by boiling it in POCl 3/PCl 5. Compound 10b was produced ...
![6-CHLORO-3-METHYL-1-PHENYL-1H-PYRAZOLO[3,4-B]PYRIDINE-5-CARBALDEHYDE Structure](https://image.chemsrc.com/caspic/137/81933-75-7.png)