[Ag] ₂ [B ₁₂ Cl ₁₂ ] as a Catalyst in PhICl ₂ Mediated Chlorination**

Abstract

Abstract The weakly coordinating dianion [B 12 Cl 12 ] 2− originates from a family of carboranes typically reserved for application in coordination chemistry. Herein, we show that its readily accessible Ag(I) salt, [Ag] 2 [B 12 Cl 12 ], can be used as a catalyst in the PhICl 2 mediated chlorination of arenes, alkenes, and alkynes. The promising activity displayed by [Ag] 2 [B 12 Cl 12 ] over a variety of commercially available Ag(I) sources merits its incorporation to the toolkit of commonly screened silver catalysts in synthesis.