1: 3-methyl-pentanoic acid With lithium diisopropyl amide in tetrahydrofuran T=-20°C; 0.25 h; 2: With N,N,N',N',N'',N''-hexamethylphosphoric triamide in tetrahydrofuran T=4°C; 0.0833333 h; 3: ethyl iodide in tetrahydrofuran T=0 - 20°C; 1 h; Further stages.;

1: in tetrahydrofuran T=0 - 20°C; 1 h; 2: With hydrogenchloride; water in tetrahydrofuran pH=1 - 2;

dipotassium peroxodisulfate; 2BF4(1-)*4B(3+)*4C6H12NO3(3-)*4Cu(2+)*4HO(1-)*O(2-); water in acetonitrile T=60°C; P=15201 Torr; 6 h;

T=150 - 170°C;

1: PCl3 2: benzene; NH3 View Scheme