Interaction of disodium o-benzeneditellurolate with butyl dichloromethyl ether gave 2-butoxybenzo-1,3-ditellurole. Treatment of the latter with HBF4 in acetic anhydride afforded benzo-1,3-ditellurolium tetrafluoroborate.
Interaction of disodium o-benzeneditellurolate with butyl dichloromethyl ether gave 2-butoxybenzo-1,3-ditellurole. Treatment of the latter with HBF4 in acetic anhydride afforded benzo-1,3-ditellurolium tetrafluoroborate.