1: With oxygen; sodium hydrogencarbonate in N,N-dimethyl-formamide T=110°C; 0.0833333 h; 2: With sodium dithionite in N,N-dimethyl-formamide T=110°C; 0.0833333 h; 3: With water in N,N-dimethyl-formamide T=110°C; SolventReagent/catalystTemperature;