1: With n-butyllithium in tetrahydrofuran; hexane T=-78°C; 5 h; 2: With hydrogenchloride in tetrahydrofuran; hexane T=-78°C; 0.166667 h;

1: With n-butyllithium in hexane T=-78 - 0°C; 2: With water in tetrahydrofuran; hexane T=0°C;