1: (1Z,3Z)-1-butyltelluro-4-methoxy-1,3-butadiene With n-butyllithium in tetrahydrofuran T=-78°C; 0.0166667 h; Inert atmosphere; 2: propionaldehyde in tetrahydrofuran T=-78 - 20°C; Inert atmosphere;

1: (1Z,3Z)-1-butyltelluro-4-methoxy-1,3-butadiene With n-butyllithium in tetrahydrofuran T=-78°C; 0.0166667 h; Inert atmosphere; 2: pentanal in tetrahydrofuran T=-78 - 20°C; Inert atmosphere;

1: (1Z,3Z)-1-butyltelluro-4-methoxy-1,3-butadiene With n-butyllithium in tetrahydrofuran T=-78°C; 0.0166667 h; Inert atmosphere; 2: hexanal in tetrahydrofuran T=-78 - 20°C; Inert atmosphere;

1: (1Z,3Z)-1-butyltelluro-4-methoxy-1,3-butadiene With n-butyllithium in tetrahydrofuran T=-78°C; 0.0166667 h; Inert atmosphere; 2: propionaldehyde in tetrahydrofuran T=-78 - 20°C; Inert atmosphere;

1: (1Z,3Z)-1-butyltelluro-4-methoxy-1,3-butadiene With n-butyllithium in tetrahydrofuran T=-78°C; 0.0166667 h; Inert atmosphere; 2: butyraldehyde in tetrahydrofuran T=-78 - 20°C; Inert atmosphere;