Boron Trifluoride Etherate Induced Stille Cross-Coupling Reaction of Aryltriazenes with Tributyl(phenyl)stannane Catalyzed by Recyclable Pd/C Catalyst

Abstract

A novel and efficient Pd/C-catalyzed Stille cross-coupling reaction of aryltriazenes with tributyl(phenyl)stannane has been realized in the presence of 1 equiv of BF₃·OEt₂ under room temperature. The Pd/C catalyst could be re-used several times and still retained its high activity. The present protocol, utilizes simple and recyclable catalyst, readily available starting materials and mild reaction conditions, provides an attractive methodology to a diverse range of biaryl products in moderate to excellent yields.