反应详情

1.5 g (4.2 mmol) of 2,4-dichloro-5-(5-difluoromethoxy-1-methyl-1H-pyrazol-3-yl)nitrobenzene were dissolved in a mixture of 50 ml of tetrahydrofuran and 50 ml of methanol and admixed with 4 g of Raney nickel. The mixture was stirred at room temperature under a gage pressure of 0.3 bar of hydrogen for 4 h and then filtered through kieselguhr. The filtrate was dried using magnesium sulfate and then evaporated to dryness. This gave 1.3 g of the aniline.

1. filtrationfiltered through kieselguhr
2. customThe filtrate was dried
3. customevaporated to dryness