Successive treatment of triallylamine with zirconocene chloride hydride and germaniumtetrachloride affords 1-aza-5-germa-5-chlorobicyclo[3.3.3]undecane, which is converted to the 5-organo derivatives by the reaction with Grignard or lithiumreagents. The organo groups showed higher reactivities toward Stille-type coupling than the corresponding organotributylgermanes.