Acetophenone → Acetophenone 4-nitrophenylhydrazone

Beteiligte Stoffe

Reaktionsschritte

10.2 g of acetophenone -p-nitrophenylhydrazone (melting point: 186.5-188.0° C.) obtained by equimolar reaction of p-nitrophenylhydrazine and acetophenone was subjected to Vilsmeir reaction with phosphorus oxychloride and dimethylformamide to obtain 11.8 g of 1-(p-nitrophenyl)-3-phenylpyrazole-4-carboxyaldehyde (melting point: 208.5-211.0° C.) having the following structural formula. ##STR300##

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