1: With n-butyllithium; zirconocene dichloride in diethyl ether; hexane T=-50 - 34°C; 2: With hydrogenchloride in diethyl ether; hexane T=20°C;

1: With n-butyllithium; zirconocene dichloride in diethyl ether; hexane T=-50 - 34°C; 2: With N-chloro-succinimide in diethyl ether; hexane