trichlorophosphate 3 h; Heating;

1: 32 percent / m-chloroperbenzoic acid / CHCl3 / 120 h / 40 °C 2: 52 percent / POCl3 / 3 h / Heating View Scheme

1: 78 percent / FeSO4*7H2O; H2SO4 / nitrobenzene / 5 h / 80 °C 2: 32 percent / m-chloroperbenzoic acid / CHCl3 / 120 h / 40 °C 3: 52 percent / POCl3 / 3 h / Heating View Scheme

1: 2,8-dichloroquinoline With lithium diisopropyl amide in tetrahydrofuran; cyclohexene T=-78°C; 2 h; 2: formic acid ethyl ester in tetrahydrofuran; cyclohexene T=-78°C; 4 h;