New highly active heterogeneous silicaethylphosphatrioxaadamantane palladium catalysts with very low millimole per gram palladium load are reported. Applied to a broad range of Suzuki substrate pairs in 0.1-0.2 mol%, these catalysts are very effective, reusable and resistant to leaching for reactions in hot xylene or with microwave irradiation of EtOH:H2O:DME solutions. (C) 2008 Elsevier B.V. All rights reserved.