Pd(PrSO3)(2)@SBA-15 and Pd-NPs(PrSO3)@SBA-15 hybrid materials: A highly active, reusable, and selective interface catalyst for C-X activations in air and water

摘要

A series of ordered mesoporous organic-inorganic hybrid material are designed by using the SO3H-functionalized SBA-15 [(PdX2@SBA-15/SO3H or Pd(PrSO3)(2)@SBA-15) and (Pd-NPs@SBA-15/SO3H or Pd-NPs(PrSO3)@SBA-15)] as solid supports for palladium ions. Among them, the encapsulated Pd(MeCN)(2)Cl-2 into the SBA-15/SO3H and Pd-NPs@SBA-15/SO3H exhibit higher activity and selectivity toward Suzuki cross-coupling reaction in aerobic condition and water/DMF solvent. These heterogeneous palladium precatalysts could be separated from the reaction mixture and reused at least 11 times. (C) 2015 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.