silver tetrafluoroborate in diethyl ether

With  tert-butylhypochlorite in  benzene 2 h;  in the dark;   

Multi-step reaction with 2 steps 1: 10.0 g / sodium carbonate / methanol; H2O / 1) room temperature, 2) reflux, 2 h2: 1.45 g / t-butylhypochlorite / benzene / 2 h / in the dark