反应详情

To a stirred solution of 2,3-dichloro-4-methoxy-N-n-butylaniline (8.5 g) in 1,1,2,2-tetrachloroethane (80 ml) is added anhydrous aluminium chloride (8.5 g), and the mixture is refluxed for about 40 hours. The resulting mixture is poured into ice/water (about 500 ml), and the precipitated material is extracted twice with methylene chloride. The combined extracts are dried and evaporated in vacuo to give the title compound as a heavy oil.

1. temperaturethe mixture is refluxed for about 40 hours
2. extractionthe precipitated material is extracted twice with methylene chloride
3. customThe combined extracts are dried
4. customevaporated in vacuo