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Visible‐Light‐Enhanced Suzuki–Miyaura Reactions of Aryl Chlorides in Water with Pd NPs Supported on a Conjugated Nanoporous Polycarbazole
Author(s) -
Guo Bin,
Li HongXi,
Zha ChengHao,
Young David James,
Li HaiYan,
Lang JianPing
Publication year - 2019
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201802918
Subject(s) - nanoporous , aryl , catalysis , conjugated system , chemistry , palladium , nanoparticle , photochemistry , functional group , nanocomposite , coupling reaction , combinatorial chemistry , materials science , organic chemistry , nanotechnology , polymer , alkyl
Abstract 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.