T=720°C;

1: 4-(1H-pyrrol-1-yl)pyridine With n-butyllithium; 2-(dimethylamino)-ethanol in hexane; toluene T=-78°C; 1.5 h; 2: dimethyl-disulfide in tetrahydrofuran; hexane; toluene T=-78 - 20°C;

1: 4-(1H-pyrrol-1-yl)pyridine With n-butyllithium; 2-(dimethylamino)-ethanol in hexane T=0°C; 2: dimethyl-disulfide in tetrahydrofuran; hexane T=-78°C; 1 h;