Abstract
The terminal zinc hydride complex, [TpBut,Me]ZnH, can be conveniently obtained from the hydroxide derivative, [TpBut,Me]ZnOH, by reaction with H3NBH3. The zinc hydride complex [TpBut,Me]ZnH is reactive and the Zn–H bond undergoes (i) insertion of CO2 to produce the formate complex, [TpBut,Me]Zn(κ1–O2CH), (ii) protolytic cleavage with Me3SiOH to afford [TpBut,Me]ZnOSiMe3, and (iii) metathesis with Me3SnF to form the zinc fluoride derivative, [TpBut,Me]ZnF. The fluoride derivative, which may also be formed by the reactions of [TpBut,Me]ZnOH with [Me3O][BF4] or Me3SnF, can be converted back to [TpBut,Me]ZnH upon treatment with either H3NBH3 or (MeO)3SiH.
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