silver nitrate in water; dimethyl sulfoxide T=110°C; 3 h;

acetic acid; zinc 2 h; Yield given;

1: 42 percent Chromat. / tetraethylammonium cyanate / acetonitrile / 80 h / 80 °C / DMF 2: 83 percent / conc. HCl, 100percent HCOOH / H2O / 24 h / 125 °C View Scheme

electrolysis in THF solution containing (n-Bu)4NClO4 (0.2 mol/dm-3) as supporting electrolyte in an undivided cell with carbon electrods. Electricity 2.2 F*mol-1, constant current 50 mA.;