期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 17, 期 32, 页码 8984-8994出版社
WILEY-BLACKWELL
DOI: 10.1002/chem.201002190
关键词
cross-coupling; heterogeneous catalysis; mesoporous materials; palladium; template synthesis
资金
- European Community
- CNRS
- Natural Science and Engineering Council of Canada (NSERC)
- Johnson and Johnson
This work describes the synthesis of novel functional silica materials with difunctional thiol-amide substructures and featuring regular architectures on a mesoscopic level. The functional materials were synthesised by both one-pot co-condensation and post-grafting approaches. The thiol groups confined in the matrix were found to be efficient for palladium entrapment, leading to highly active and reusable heterogeneous catalysts for Sonogashira and Suzuki-Miyaura cross-coupling reactions. This work evidences the crucial role of both the thiol precursor and the condensation degree of the silica scaffold in view of the design of stable and reusable tailor-made mesoporous catalytic silica materials.
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