反应详情

Using the procedure of Step B, of Example 4, 3.46 g of the product of Step A, 2.21 g of propionic acid hydrazide, 1.74 ml of triethylamine and 50 ml of toluene were reacted to obtain 2.8 g of 3,4-bis-(4-methoxyphenyl)-5-ethyl-4H-1,2,4-triazole melting at 122° C.