3-(二氟甲基)-1-甲基-1H-吡唑-4-羰酰氯 、 N-[2-(2,4-dichlorophenyl)-1-methyl-ethyl]-hydroxylamine 、
三乙胺 、
盐酸 在
二氯甲烷 、
Sodium sulfate-III 、 residue 、 silica gel 、 c-hexane ethyl acetate 、
3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid [2-(2,4-dichlorophenyl)-1-methyl-ethyl]-hydroxy-amide 、 solid 作用下,
以
二氯甲烷 为溶剂,
以1.51 g (43.8% of theory) of 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid [2-(2,4-dichlorophenyl)-1-methyl-ethyl]-hydroxy-amide (compound 1.028) was obtained in form of a white solid (m.p. 162-167° C.)的产率得到3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid [2-(2,4-dichlorophenyl)-1-methyl-ethyl]-hydroxy-amide