Abstract
AbstractA regioselective cobalt‐catalyzed protoboration of alkynes has been developed, utilizing diboron as the borylation source for the efficient synthesis of alkenylborates. The reaction proceeds via cobalt‐boryl intermediates, diverging from conventional Co−H chemistry. By fine‐tuning the phosphine ligand side chains, we achieved excellent reactivity and regioselectivity across a wide range of internal and terminal alkynes. This Co‐catalyzed method offers significant advantages in terms of both efficiency and environmental impact, making it an attractive approach for the synthesis of complex organic molecules.
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