Selective B(4)–H Alkoxylation of o -Carboranes with Alcohols via Heteroleptic Cu(I)-Photocatalyzed 1,5-HAT-Enabled Boron Radical-Polar Crossover
Carboranes are an important class of boron cluster compounds with broad applications in medicine, materials science, and catalysis. However, the site-selective functionalization of their B–H bonds remains a long-standing challenge owing to the nearly identical chemical environments and high bond dissociation energies...