caesium carbonate; 1,3-bis(2,4,6-trimethylphenyl)imidazolinium chloride; palladium diacetate in 1,4-dioxane T=120°C; P=37503 Torr; 6 h;

[Co(O2CCH3)2]*4H2O in 1,4-dioxane T=50°C; 4.5 h; chemoselective reaction;

1: 1-bromo-2-methyl benzene With magnesium in tetrahydrofuran Inert atmosphere; 2: 2-pyridine carbonitrile in tetrahydrofuran T=0°C; Inert atmosphere; 3: With hydrogenchloride; water in diethyl ether 0.5 h; Inert atmosphere;

diethyl ether; benzene und Erhitzen des Reaktionsgemisches mit wss.Ammoniumchlorid-Loesung;

manganese(IV) oxide 2.) ether; Yield given. Multistep reaction;