aluminium trichloride in dichloromethane T=0°C; 4 h;

aluminium trichloride in dichloromethane 15 h; Ambient temperature;

1: 1-bromo-4-isopropylbenzene With magnesium in tetrahydrofuran Inert atmosphere; 2: 2,2,2-trifluoro-1-pyrrolidin-1-ylethanone in tetrahydrofuran Inert atmosphereReflux;