反应详情

1-(1-Benzyl-piperidin-4-yl)-5-methyl-1H-pyrazole-4-carbaldehyde was prepared from ethyl acetoacetate and (1-benzyl-piperidin-4-yl)-hydrazine in the same manner as 5-cyclopropyl-1-isopropyl-1H-pyrazole-4-carbaldehyde (Example 49). (1-Benzyl-piperidin-4-yl)-hydrazine was prepared from 1-benzyl-piperidin-4-one in the same manner as (1-methyl-piperidin-4-yl)-hydrazine (Example 92).