反应条件
1: 7-(4-bromobutoxy)-3,4-dihydro-quinolin-2(1H)-one With sodium iodide in acetonitrile 0.5 h; Heating / reflux; 2: 1-(2,3-dichloro-phenyl)-piperazine With triethylamine in acetonitrile T=25 - 35°C; 3 h; Heating / reflux; 3: toluene-4-sulfonic acid in dichloromethane; ethyl acetate T=25 - 35°C; 3 h; Product distribution / selectivity;