1: With dipotassium peroxodisulfate; trifluoroacetic acid; palladium (II) trifluoroacetate in dichloromethane T=50°C; 48 h; 2: With water in dichloromethane
1: With dipotassium peroxodisulfate; trifluoroacetic acid; palladium (II) trifluoroacetate in dichloromethane T=50°C; 48 h; 2: With water in dichloromethane