1: With n-butyllithium in tetrahydrofuran T=0°C; 0.5 h; 2: With boric acid trimethyl ester in tetrahydrofuran T=20°C; 2 h; 3: With hydrogenchloride in tetrahydrofuran; water

n-butyllithium in tetrahydrofuran Ar atmosphere; addn. of n-BuLi to diphenyl ether in THF (0°C), addn. of B(OMe)3 (0°C), stirring (room temp., 1 h); pouring into aq. HCl, extn. (ether), drying of ether layer (over Na2SO4), evapn., column chromy. (silica gel, EtOAc/hexane 1:3), recrystn. ether/hexane); elem. anal.;

dipotassium peroxodisulfate; Bi(NO3)3·5H2O in benzene T=70°C; 12 h; Inert atmosphere;

sodium chlorite in water T=20°C; 0.5 h;

Pd black; potassium hydroxide in water T=100°C; Suzuki Coupling; 1 h; Sealed tubeGreen chemistry; TemperatureTime;