triethylamine in chloroform T=25°C; 1 h;

1: 50 percent / Na/NH3, FeCl3*5H2O / 10 h / -78 °C 2: 92 percent / Jones reagent / acetone / 0.5 h / 25 °C 3: 86 percent / diethyl ether 4: 77 percent / Et3N / CHCl3 / 1 h / 25 °C View Scheme

1: 92 percent / Jones reagent / acetone / 0.5 h / 25 °C 2: 86 percent / diethyl ether 3: 77 percent / Et3N / CHCl3 / 1 h / 25 °C View Scheme

1: 86 percent / diethyl ether 2: 77 percent / Et3N / CHCl3 / 1 h / 25 °C View Scheme