Investigations on organolead compounds VI. Triphenylplumbylsodium and triphenylplumbylmagnesium halide

Abstract

Triphenylplumbylsodium can be prepared from hexaphenyldilead and finely divided sodium in tetrahydrofuran at room temperature while triphenylplumbylmagnesium halide can be conveniently prepared from lead dichloride and phenylmagnesium chloride or bromide in tetrahydrofuran. These reagents resemble the previously investigated compound triphenylplumbyllithium in many respects. They usually couple readily with reactive halides, but sometimes an exchange reaction is observed. The tendency to exchange increases in the order: Ph3PbNa< Ph3PbLi< Ph3PbMgX.