反应详情

2,4-Dichlorobenzenesulphonyl chloride (500 mg 2.1 mmol) and 1-propylamine (0.2 ml, 2.4 mmol) in n-butanol (10 ml) was heated at reflux for 48 hour. The volatiles were removed by evaporation and the residue triturated with ether and the product collected by filtration to give the title compound. NMR: 0.78 (t, 3H), 1.35 (q, 2H), 2.79 (t, 2H), 7.60 (dd, 1H), 7.84 (d, 1H), 7.92 (d, 2H)

1. temperatureat reflux for 48 hour
2. customThe volatiles were removed by evaporation
3. customthe residue triturated with ether
4. filtrationthe product collected by filtration