Palladium supported on urea-containing porous organic polymers as heterogeneous catalysts for C–C cross coupling reactions and reduction of nitroarenes

The novel palladium nanoparticles (Pd@POPs) were successfully prepared with controllable sizes and dispersity through the introduction of H2PdCl4 into urea-linked porous organic polymers (POPs) in an aqueous environment followed by reducing Pd(II) to Pd(0) by NaBH4. The newly prepared Pd@POPs were t...

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Bibliographic Details
Published in:Journal of Saudi Chemical Society 2021-09, Vol.25 (9), p.101317, Article 101317
Main Authors: Dong, Zhenhua, Pan, Hongguo, Chen, Jing, Fan, Lulu, Guo, Jiaxing, Wang, Wentao
Format: Article
Language:English
Subjects:
Heck cross coupling
Pd nanoparticles
Porous organic polymers
Reduction of nitroarenes
Suzuki-Miyaura cross coupling
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Summary:The novel palladium nanoparticles (Pd@POPs) were successfully prepared with controllable sizes and dispersity through the introduction of H2PdCl4 into urea-linked porous organic polymers (POPs) in an aqueous environment followed by reducing Pd(II) to Pd(0) by NaBH4. The newly prepared Pd@POPs were thoroughly characterized by FT-IR, ICP-AES, BET, XRD, SEM and TEM. Furthermore, the catalytic reactivities of this novel Pd@POPs were investigated via Heck, Suzuki-Miyaura cross-coupling reaction and nitroarene reduction, and they exhibited superior catalytic performances in all these three reactions, producing the corresponding products in up to quantitative yields. Additionally, the Pd@POPs had excellent recyclability in both Heck and Suzuki-Miyaura cross-coupling reactions with the repeating time up to four times and ten times, respectively, along with no obvious decrease of catalytic reactivities.
ISSN:1319-6103
DOI:10.1016/j.jscs.2021.101317