Synthesen mit verbindungen R3M-Hg-MR3 und (R2M-Hg)n(M = C,Si, Ge,Sn) : XI. Mercurierung und demercurierung mittels di-t-butylquecksilber, (CH3)3C-Hg-C(CH3)32

Me₃CHgCMe₃ (I) adds to strongly polar CC groups as well as to some CC and NN groups resp., forming t-BuHg containing cis-products. Its reactivity is higher than that of Et₂Hg and equals that of Me₃SiHgSiMe₃ to some extent. In most examples, polar four-center transition states are assumed, but radical reactions occur, too. In the Hg containing adducts investigated, the t-BuHg group can be replaced by the Me₃Sn group easily, by using Me₃SnH. Hg is split off, and i-C₄H₁₀ is evolved quantitatively.