hydrogen cation

n-BuMnMgBr in tetrahydrofuran; N,N,N',N',N'',N''-hexamethylphosphoric triamide T=25°C; Rearrangement; 12 h;

1: n-butyl-magnesium bromide With N,N,N',N',N'',N''-hexamethylphosphoric triamide; manganese (II) chloride in tetrahydrofuran T=0°C; 0.333333 h; 2: (3-Buten-2-yl)(tetrahydro-2-pyranyl)ether in tetrahydrofuran T=0 - 25°C; 23 h;

in tetrahydrofuran; N,N,N',N',N'',N''-hexamethylphosphoric triamide T=25°C; Ring cleavage; 12 h;