1: n-butyl 2-pyridyl telluride With Me2Cu(CN)Li2 in tetrahydrofuran; diethyl ether T=-20°C; 1.5 h; 2: cyclohexenon in tetrahydrofuran; diethyl ether T=20°C; 20 h;

1: With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.0833333 h; 2: With 1,2-di-iodoethane in tetrahydrofuran; hexane T=20°C; 20 h;

1: n-butyl 2-pyridyl telluride With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 0.0833333 h; 2: N-Methoxy-N-methyl-benzamide in tetrahydrofuran; hexane T=20°C; 20 h;