tert.-butylhydroperoxide; anhydrous iron chloride in neat (no solvent) T=100°C; 10 h; Reagent/catalystSolvent;

copper acetylacetonate; water; caesium carbonate; 2,2'-bis-(diphenylphosphino)-1,1'- binaphthyl in o-di-fluorobenzene T=120°C; 2 h; Sealed tube; Reagent/catalyst;

1: 1H-benzo[d]imidazole With tetrabutylammomium bromide; potassium carbonate; potassium hydroxide in anhydrous xylene T=20°C; 0.0833333 h; Inert atmosphere; 2: 1-chloro-1,1-diphenylmethane in anhydrous xylene 26 h; Inert atmosphereReflux;

1: 1H-benzo[d]imidazole With sodium hydroxide in acetonitrile 0.5 h; 2: bromo-di-phenylmethane in acetonitrile Reflux;

1: methanol / 60 °C 2: copper acetylacetonate; 2,2'-bis-(diphenylphosphino)-1,1'- binaphthyl; caesium carbonate; water / o-di-fluorobenzene / 2 h / 120 °C / |Sealed tube View Scheme