[3-N2-o-C2B10H11][BF4]: a useful synthon for multiple cage boron functionalizations of o-carborane

Abstract

Reaction of [3-N₂-o-C₂B₁₀H₁₁][BF₄] with various kinds of nucleophiles gives a very broad spectrum of cage B(3)-substituted o-carborane derivatives, 3-X-o-C₂B₁₀H₁₁ (X = OH, SCN, NH₂, NO₂, N₃, CF₃, PO(C₆H₅)₂, etc.), and serves as a simple and efficient method for multiple functionalization of o-carborane.