Journal
NEW JOURNAL OF CHEMISTRY
Volume 47, Issue 6, Pages 3104-3111Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2nj05807c
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We report the development of a low-cost and sustainable copper catalyst system to replace expensive Pd-catalysts for the Suzuki cross-coupling reaction, which shows excellent catalytic activity and recyclability.
The design and development of a low-cost and sustainable catalytic system to replace expensive Pd-catalysts for the Suzuki cross-coupling reaction is one of the major challenging areas of research in synthetic organic chemistry. Cross-coupling reactions with good yield in the presence of the Cu-based monometallic catalyst at room temperature have not been realized in previous works. We herein report the fabrication of a novel single-atom Cu catalyst (Cu-TAPB-BTDA-COF) for the Suzuki-coupling reaction at room temperature. The catalyst was obtained by post-synthetic metalation of the COF, synthesized by the combination of 4,4 '-(benzothiadiazole-4,7-diyl)dibenzaldehyde (BTDA) and 1,3,5-tris-(4-aminophenyl)-benzene (TAPB). Cu-TAPB-BTDA-COF shows excellent catalytic activity for the Suzuki cross-coupling reaction, which is able to effectively promote the Suzuki cross-coupling reaction under mild reaction conditions (room temperature, a nontoxic solvent, and air atmosphere). In addition, the catalyst could be recycled and reused multiple times without the loss of catalytic activity. Compared with other Cu-based catalysts, our COF-based Cu catalyst simultaneously demonstrates excellent performance and recyclability.
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