Visible‐Light‐Enhanced Suzuki–Miyaura Reactions of Aryl Chlorides in Water with Pd NPs Supported on a Conjugated Nanoporous Polycarbazole

The visible‐light‐enhanced catalytic activation of aryl chlorides for Suzuki–Miyaura cross‐coupling (SMC) reactions is highly challenging because of the strength of the C−Cl bond. In this work, palladium nanoparticles (Pd NPs) were grown on a conjugated nanoporous polycarbazole (CNP), named Pd/CNP....

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Bibliographic Details
Published in:ChemSusChem 2019-04, Vol.12 (7), p.1421-1427
Main Authors: Guo, Bin, Li, Hong‐Xi, Zha, Cheng‐Hao, Young, David James, Li, Hai‐Yan, Lang, Jian‐Ping
Format: Article
Language:English
Subjects:
Activation
Aromatic compounds
aryl chloride
Catalysis
Catalytic activity
Chemical reactions
Chlorides
Electron density
Functional groups
Nanoparticles
Palladium
photocatalyst
polycarbazole
Suzuki–Miyaura
visible light
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Summary:The visible‐light‐enhanced catalytic activation of aryl chlorides for Suzuki–Miyaura cross‐coupling (SMC) reactions is highly challenging because of the strength of the C−Cl bond. In this work, palladium nanoparticles (Pd NPs) were grown on a conjugated nanoporous polycarbazole (CNP), named Pd/CNP. The hybrid material Pd/CNP could catalyze the SMC reactions of aryl chlorides with arylboronic acids in water under blue LED irradiation at room temperature with high efficiency. This protocol exhibited good functional group tolerance and the catalyst could be recycled without significant loss of its catalytic activity. CNP not only provided photogenerated electrons to enrich the electron density of the Pd NPs but also generated holes for the activation of the arylboronic acids. Shine a light: Induced by visible light, recyclable conjugated nanoporous polycarbazole‐supported Pd nanoparticles catalyze Suzuki–Miyaura cross‐coupling reactions of aryl chlorides in water at room temperature.
ISSN:1864-5631
1864-564X
DOI:10.1002/cssc.201802918