1: Butyltellanylmethyl-phosphonic acid diethyl ester With lithium diisopropyl amide in tetrahydrofuran T=0°C; 0.5 h; 2: butyltellurenyl iodide in tetrahydrofuran T=-78 - 0°C; 0.833333 h; 3: 3,7-dimethyloct-6-en-1-al With N,N,N',N',N'',N''-hexamethylphosphoric triamide in tetrahydrofuran T=20°C; Horner-Wittig reaction; 3 h;

1: Butyltellanylmethyl-phosphonic acid diethyl ester With lithium diisopropyl amide in tetrahydrofuran T=0°C; 0.5 h; 2: butyltellurenyl iodide in tetrahydrofuran T=-78 - 0°C; 0.833333 h; 3: heptanal With N,N,N',N',N'',N''-hexamethylphosphoric triamide in tetrahydrofuran T=20°C; Horner-Wittig reaction; 3 h;

1: Butyltellanylmethyl-phosphonic acid diethyl ester With lithium diisopropyl amide in tetrahydrofuran T=0°C; 0.5 h; 2: butyltellurenyl iodide in tetrahydrofuran T=-78 - 0°C; 0.833333 h; 3: pentanal With N,N,N',N',N'',N''-hexamethylphosphoric triamide in tetrahydrofuran T=20°C; Horner-Wittig reaction; 3 h;

1: Butyltellanylmethyl-phosphonic acid diethyl ester With lithium diisopropyl amide in tetrahydrofuran T=0°C; 0.5 h; 2: butyltellurenyl iodide in tetrahydrofuran T=-78 - 0°C; 0.833333 h; 3: butyraldehyde With N,N,N',N',N'',N''-hexamethylphosphoric triamide in tetrahydrofuran T=20°C; Horner-Wittig reaction; 3 h;

1: Butyltellanylmethyl-phosphonic acid diethyl ester With lithium diisopropyl amide in tetrahydrofuran T=0°C; 0.5 h; 2: butyltellurenyl iodide in tetrahydrofuran T=-78 - 0°C; 0.833333 h; 3: cyclohexanone With N,N,N',N',N'',N''-hexamethylphosphoric triamide in tetrahydrofuran T=20°C; Horner-Wittig reaction; 3 h;