1: triethylamine / tetrahydrofuran / 0.58 h / -74 °C 2: triethylamine / tetrahydrofuran / 7 h / -78 °C 3: 24 °C View Scheme

triethylamine in tetrahydrofuran T=-74°C; 0.583333 h;

1: triethylamine / tetrahydrofuran / 0.58 h / -74 °C 2: triethylamine / tetrahydrofuran / 7 h / -78 °C 3: 24 °C 4: neat (no solvent) / 72 h / 24 °C View Scheme