Via metathetical reaction of triarylbismuth dihalides and related compounds

Via metathetical reaction of triarylbismuth dihalides and related compounds 

Metathetical reaction of triarylbismuth dihalides and their derivatives is widely used for the preparation of triarylbismuth(V) compounds of the type Ar3BiX2, where X denotes an anionic group. 

A benzene solution of triphenylbismuth dichloride and an aqueous solution of silver acetate were mixed with vigorous stirring. The benzene layer was then separated and concentrated under reduced pressure. Dilution with light petroleum caused triphenylbismuth diacetate to precipitate. This was recrystallized from a mixture of benzene and light petroleum, m.p. 173°C [70CJC2488]. 

Triphenylbismuth dichloride and bis(trifluoroacetate) react with one equiv. of sodium salt of p-nitrophenol to give the corresponding triphenylbismuth(V) compounds of the type Ph3BiX(OAr) [85JCS(P1)2657]. Sodium or guanidium salts of 3,5-di-ferf-butylphenol and 8-hydroxyquinoline are also transferrable by this method. 

Although Challenger and co-workers reported that triphenylbismuth(V) 

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