1: 2,8-dichloroquinoline With n-butyllithium; diisopropylamine in tetrahydrofuran; hexane T=-78 - 0°C; 3 h; 2: formic acid ethyl ester in tetrahydrofuran; hexane T=-78°C; 1 h;

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;

Triton X-100; trichlorophosphate in acetonitrile Vilsmeier-Haack cyclisation; 1.41667 h; Heating;