Copper(I) Confined in Interlayer Space of Montmorillonite: A Highly Efficient and Recyclable Catalyst for Click Reaction

Cu-I-exchanged solid based on montmorillonite material was investigated as catalyst in organic synthesis. The catalytic potential of this material was evaluated in the Huisgen [3+2]cycloaddition. This catalytic system has been examined and proved to be an efficient heterogeneous catalyst for this click chemistry-type transformation. The ensuing catalyst can be recycled and reused five times without dramatic yield loss. [GRAPHICS] .