potassium acetate in isobutyramide T=20°C; 2 h;

1.1: copper dichloride / tetrahydrofuran / 0.02 h / 3 °C / |Inert atmosphere 1.2: 0.03 h / 3 °C / |Inert atmosphere 1.3: 1.75 h / 2.5 °C / |Inert atmosphere 2.1: peracetic acid; acetic acid / dichloromethane / 18 h / 4 - 20 °C / |Inert atmosphere View Scheme

1.1: perchloric acid / water / 20 - 27 °C / |Inert atmosphere 1.2: 20 - 35 °C / |Inert atmosphere 2.1: potassium carbonate / water; acetone / 40 - 46 °C / |Inert atmosphere 3.1: copper dichloride / tetrahydrofuran / 0.02 h / 3 °C / |Inert atmosphere 3.2: 0.03 h / 3 °C / |Inert atmosphere 3.3: 1.75 h / 2.5 °C / |Inert atmosphere 4.1: peracetic acid; acetic acid / dichloromethane / 18 h / 4 - 20 °C / |Inert atmosphere View Scheme

1.1: thionyl chloride / tetrahydrofuran / 0.67 h / 0 °C / |Inert atmosphere 1.2: 1.25 h / 5 - 20 °C 2.1: 4-(N,N-dimethlyamino)pyridine / dichloromethane / 0.5 h / 20 °C / |Inert atmosphere 3.1: 1,8-diazabicyclo[5.4.0]undec-7-ene / tetrahydrofuran / 3 h / 60 °C / |Inert atmosphere 4.1: perchloric acid / water / 20 - 27 °C / |Inert atmosphere 4.2: 20 - 35 °C / |Inert atmosphere 5.1: potassium carbonate / water; acetone / 40 - 46 °C / |Inert atmosphere 6.1: copper dichloride / tetrahydrofuran / 0.02 h / 3 °C / |Inert atmosphere 6.2: 0.03 h / 3 °C / |Inert atmosphere 6.3: 1.75 h / 2.5 °C / |Inert atmosphere 7.1: peracetic acid; acetic acid / dichloromethane / 18 h / 4 - 20 °C / |Inert atmosphere View Scheme

hydrogen fluoride in chloroform