Synthesis of C-Allenyl o-Carboranes through Copper(I)-Catalyzed Coupling Reaction of Ethynyl o-Carboranes with N-Tosylhydrazones.

A synthetic method for C-allenyl o-carboranes was demonstrated using the coupling reaction of ethynyl o-carboranes with N-tosylhydrazones under copper(I) catalysis. This approach is significant because it achieved high yields despite the incorporatio…

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