Pyridyl-Directed Cp*Rh(III)-Catalyzed B(3)–H Acyloxylation of <i>o</i>-Carborane

Abstract

An efficient pyridyl-directed Rh(III)-catalyzed o- carborane B(3)–H acyloxylation is reported. The B(3)–H bond is the most electron-deficient vertex on o -carborane whose functionalization is challenging. The combination of Cu(OH) 2 and diverse carboxylic acids provides low cost and abundant acyloxyl sources which could lead to moderate to excellent yields.