We developed a versatile nickel-based catalytic system that enables selective transformation of alkynes under mild, practical conditions. Using tailored P,N-donor ligands, the catalyst efficiently converts a wide range of substrates into valuable alkenylboronates with high selectivity and excellent yields. The method operates at room temperature, requires low catalyst loadings, and is scalable, making it attractive for synthetic applications.

A key advantage of this system is its switchable reactivity. By introducing a simple additive (TEMPO), the reaction pathway can be redirected from hydroboration to enyne formation—providing access to two distinct classes of products from the same starting materials.

This work highlights a powerful strategy for controlling catalytic outcomes through ligand and additive design, offering a flexible and sustainable approach to modern organic synthesis