tetrafluoroboric acid; 2,4,6-trimethylphenyl iodide; 3-chloro-benzenecarboperoxoic acid in dichloromethane; water; acetonitrile T=50°C; 10 h; Inert atmosphere;

rhenium(VI) oxide; bis(trimethylsilyl)-peroxide; pyridinium trifluoroacetate in dichloromethane T=20°C; 14 h;