1: in tetrahydrofuran; pentane T=-40 - 20°C; 1 h; Inert atmosphere; 2: With water in tetrahydrofuran; pentane

hydrogen cation

1: With tetra-n-butylammonium difluorotriphenylsilicate(IV) in tetrahydrofuran T=0°C; 0.333333 h; 2: With [bis(trifluoromethanesulfonyl)imidate](PPh3)Au(I) (2:1) toluene adduct in methanol; toluene T=20°C; Meyer-Schuster rearrangement; optical yield given as percent de;

1: 1.) copper halide / 3.) Pd(PPh3)4 / 1.) THF 2.) THF 3.) THF 2: 100 percent / H(1+) View Scheme

hydrogen cation