Abstract
• Cheap, commercially available, environmentally friendly lithium triethylborohydride as a catalyst. • Lower catalyst loading(0.1mol%) and shorter reaction time. • Mild reaction conditions and broad substrate scope. Commercially available, eco-friendly lithium triethylborohydride (LiHBEt 3 , Super hydride) was shown to be an excellent catalyst for the solvent-free hydroboration of esters using pinacolborane at ambient reaction conditions. This was achieved with a low catalyst loading of 0.1 mol%. The protocol was further extended to the hydroboration of isocyanates with different stoichiometries, which displayed a clear chemo-selective catalytic activity towards the cleavage of C=N and C=O bonds. Compared with the previously reported catalysts, LiHBEt 3 catalyzes in a short reaction time with solvent free conditions to provide nearly quantitative products.
Published Version
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call