反应详情

In the same apparatus and according to the same modalities as in Example 1, 1.95 g (0.01 mole) of 1-(p-chlorophenyl)-3-amino-2-pyrazoline were suspended in 12 ml of ethanol and 0.1 ml of pyridine with addition of 0.1 g of CuCl, under an oxygen head. Oxidation was completed after about 10 hours. The oxidized product was isolated as in Example 2, thus obtaining 1 g of 1-(p-chlorophenyl)-3-amino-pyrazole of melting point 107°-108° C.

1. customThe oxidized product was isolated as in Example 2