1: sodium trifluoro-methanesulfinate in ethyl acetate T=40 - 50°C; 1 h; 2: [131I]-Uracil With iron(II) sulfate heptahydrate; silica gel in water T=40 - 50°C; 3: With tert.-butylhydroperoxide in water T=40 - 70°C; TimeReagent/catalystTemperature;
copper(ll) bromide in acetic acid; N,N-dimethyl-formamide T=115°C; 14 h; var. temp. time and solv.: aq. DMF; constant-electrolysis with Pt electrodes with KBr;