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Palladium(II)-induced selective B(4)−H activation of an o-carboranylthioamide has been developed. A tetranuclear palladium(II) complex has been obtained in high yield with excellent regioselectivity. DFT calculations have confirmed that the B(4)-borometalate is lower in energy than the corresponding B(3)-borometalate. The product proved to be a good precursor for target mononuclear or trinuclear B(4)−H activated complexes. [ABSTRACT FROM AUTHOR]

Palladium ‐ induced selective B(4)−H activation is achieved by the reaction of o ‐ carboranylthioamide and [PdCl2(CH3CN)2]. A tetranuclear palladium complex is formed in high yield. Mononuclear and trinuclear palladium complexes are obtained directly from the reaction of tetranuclear palladium complex with small molecules, such as tert ‐ butyl isocyanide and CO. These reactions are featured on the back cover. More information can be found in the Full Paper by G. ‐ X. Lin et al. on page 1814 ff. [ABSTRACT FROM AUTHOR]