triethylamine in tetrahydrofuran

1: Ba(OH)2·8H2O; water / 1-methyl-pyrrolidin-2-one / 8 h / 120 °C 2: N,N-dimethyl acetamide / 4 h / 20 °C 3: potassium carbonate / N,N-dimethyl-formamide / 30 min / 180 °C / |Microwave irradiation 4: N,N-dimethyl acetamide / 20 °C / |Cooling with ice View Scheme

1: N,N-dimethyl acetamide / 4 h / 20 °C 2: potassium carbonate / N,N-dimethyl-formamide / 30 min / 180 °C / |Microwave irradiation 3: N,N-dimethyl acetamide / 20 °C / |Cooling with ice View Scheme

1: potassium carbonate / N,N-dimethyl-formamide / 30 min / 180 °C / |Microwave irradiation 2: N,N-dimethyl acetamide / 20 °C / |Cooling with ice View Scheme