3-chloro-benzenecarboperoxoic acid in dichloromethane

1: With 1H-tetrazole; phenyl isocyanate in dichloromethane; acetonitrile T=20°C; 14 h; Inert atmosphere; 2: With dihydrogen peroxide in dichloromethane; water; acetonitrile T=0°C; 1 h; Inert atmosphere;