反应详情

4-Benzyloxyaniline hydrochloride (5.0 g, 21.2 mmol) was dropwise added to a solution of ethylmagnesium bromide (44.5 ml, 1M in THF, 44.5 mmol) in 25 ml dry TIHF under nitrogen atmosphere. After stirring for 20 minutes a solution of 2,4-dichlorobenzonitrile (3.65 g, 21.2 mmol) in 25 ml THF was added. The reaction mixture was stirred for 20 hours at room temperature. Water (50 ml) was carefully added. Extraction with EtOAc (2×100 ml), drying (Na2SO4), filtration and evaporation to dryness afforded 7.7 g (98%) of the title compound.

1. customdry TIHF under nitrogen atmosphere
2. additionwas added
3. extractionExtraction with EtOAc (2×100 ml)
4. customdrying
5. filtration(Na2SO4), filtration and evaporation to dryness