1: 1.) Cu2I2 / 1.) Et2O, -40 deg C, 20 min; -40 to -10 deg C, 20 min; 2.) Et2O/THF, -40 deg C to rt. 2: 15percent aq. H2O2 / pyridine; CH2Cl2 / 1 h / Ambient temperature View Scheme

sodium methylate in methanol 4 h; Heatingequlibration; Product distribution;