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Updated: Feb 19, 2026

Synthesis of Hypervalent Iodonium Alkynyl Triflates for the Application of Generating Cyanocarbenes
Published on: September 8, 2013
The synthesis and reactivity of 16-electron half-sandwich iridium complexes bearing a carboranylthioamide ligand
Peng-Fei Cui1, Yue-Jian Lin, Guo-Xin Jin
1State Key Laboratory of Molecular Engineering of Polymers, Collaborative Innovation Center of Chemistry for Energy Materials, Department of Chemistry, Fudan University, Shanghai 200433, P. R. China. gxjin@fudan.edu.cn.
Abstract:
A 16-electron half-sandwich Ir(iii) complex (Cp*Ir(SCN-Ph)C2H10H11, 2) featuring an o-carboranylthioamidate ligand has been synthesized, and its reactivity has been studied in detail. 2 reacts with donor ligands to afford a stable 18-electron configuration. Interestingly, the electron-deficient iridium complex 2 underwent an Ir-S bond insertion reaction with DMAD to produce an acetylene insertion product 5. Complex 2 also reacted with the [Cp*Ir] unit, produced by the reaction between [Cp*IrCl2]2 and AgOTf, to form a unique binuclear species with a metal-metal bond. Moreover, a selective B(6)-H bond activation of the o-carborane complex has also been achieved.
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