1: With n-butyllithium; 1,1,1,3,3,3-hexamethyl-disilazane in diethyl ether; hexane T=0 - 40°C; Inert atmosphere; 2: With hydrogenchloride in diethyl ether; hexane; water T=0 - 40°C; 3: With sodium hydroxide in diethyl ether; hexane; water pH=~ 11;

hydrogenchloride; diethyl ether anschliessendes Behandeln mit methanol. NH3;