Organic–inorganic hybrid materials containing 15-membered azamacrocyclic triolefinic palladium(0) complexes: Preparation and activity as recoverable catalysts in Suzuki cross-couplings

The synthesis of a palladium complex and a monosilylated monomer derived from 15-membered azatriolefinic macrocycle are described as well as the preparation of the corresponding hybrid organic–inorganic materials, containing a macrocyclic palladium(0) complex covalently anchored to the silica matrix. The materials were obtained by sol–gel process using different routes: post-synthesis treatment on a mesostructured silica, cogelification of a monosilylated precursor and tetraethylorthosilicate. The activity of the different materials as recoverable catalysts in Suzuki cross-couplings is reported and commented.

Several hybrid organic–inorganic materials containing macrocyclic triolefinic palladium(0) complexes are prepared by sol–gel processes. They are active and reusable catalysts in Suzuki cross-coupling reactions.Figure optionsDownload as PowerPoint slide