Organotransition-Metal Metallacarboranes. 20(1) Fluoride-Catalyzed C-Si BondCleavage in Cp-Co(Me3Si)2C2B4H4, Synthesis of Parent Cp-CoC2B4H6 and Conversion to C-Substituted Cp-CoRR'C2B4H4 Derivatives

摘要

Treatment of the closo-cobaltacarborane Cp-Co(Me3Si)2C2B4H4 (1) with a catalyticquantity of tetrabutylammonium fluoride in wet THF at room temperature generates the monosilyl species and/or the parent complex depending on conditions. The C-H