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: 3-(2,2-dibromovinyl)furan With n-butyllithium in tetrahydrofuran; hexane T=-78 - 20°C; 1.5 h; 2: chloro-trimethyl-silane in tetrahydrofuran; hexane T=-78 - 20°C; 19 h;

bis-triphenylphosphine-palladium(II) chloride 12 h; Heating;