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Palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for Suzuki–Miyaura coupling reactions

A novel hypercrosslinked polymers-palladium (HCPs-Pd) catalyst was successfully prepared via the external cross-linking reactions of substituted 1,2,3-triazoles with benzene and formaldehyde dimethyl acetal. The preparation of HCPs-Pd has the advantages of low cost, mild conditions, simple procedure...

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Autores principales: Liu, Cijie, Zheng, Lijuan, Xiang, Dexuan, Liu, Shasha, Xu, Wei, Luo, Qionglin, Shu, You, Ouyang, Yuejun, Lin, Hongwei
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9053621/
https://www.ncbi.nlm.nih.gov/pubmed/35521468
http://dx.doi.org/10.1039/d0ra01190h
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author Liu, Cijie
Zheng, Lijuan
Xiang, Dexuan
Liu, Shasha
Xu, Wei
Luo, Qionglin
Shu, You
Ouyang, Yuejun
Lin, Hongwei
author_facet Liu, Cijie
Zheng, Lijuan
Xiang, Dexuan
Liu, Shasha
Xu, Wei
Luo, Qionglin
Shu, You
Ouyang, Yuejun
Lin, Hongwei
author_sort Liu, Cijie
collection PubMed
description A novel hypercrosslinked polymers-palladium (HCPs-Pd) catalyst was successfully prepared via the external cross-linking reactions of substituted 1,2,3-triazoles with benzene and formaldehyde dimethyl acetal. The preparation of HCPs-Pd has the advantages of low cost, mild conditions, simple procedure, easy separation and high yield. The catalyst structure and composition were characterized by N(2) sorption, TGA, FT-IR, SEM, EDX, TEM, XPS and ICP-AES. The HCPs were found to possess high specific surface area, large micropore volume, chemical and thermal stability, low skeletal bone density and good dispersion for palladium chloride. The catalytic performance of HCPs-Pd was evaluated in Suzuki–Miyaura coupling reactions. The results show that HCPs-Pd is a highly active catalyst for the Suzuki–Miyaura coupling reaction in H(2)O/EtOH solvent with TON numbers up to 1.66 × 10(4). The yield of biaryls reached 99%. In this reaction, the catalyst was easily recovered and reused six times without a significant decrease in activity.
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spelling pubmed-90536212022-05-04 Palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for Suzuki–Miyaura coupling reactions Liu, Cijie Zheng, Lijuan Xiang, Dexuan Liu, Shasha Xu, Wei Luo, Qionglin Shu, You Ouyang, Yuejun Lin, Hongwei RSC Adv Chemistry A novel hypercrosslinked polymers-palladium (HCPs-Pd) catalyst was successfully prepared via the external cross-linking reactions of substituted 1,2,3-triazoles with benzene and formaldehyde dimethyl acetal. The preparation of HCPs-Pd has the advantages of low cost, mild conditions, simple procedure, easy separation and high yield. The catalyst structure and composition were characterized by N(2) sorption, TGA, FT-IR, SEM, EDX, TEM, XPS and ICP-AES. The HCPs were found to possess high specific surface area, large micropore volume, chemical and thermal stability, low skeletal bone density and good dispersion for palladium chloride. The catalytic performance of HCPs-Pd was evaluated in Suzuki–Miyaura coupling reactions. The results show that HCPs-Pd is a highly active catalyst for the Suzuki–Miyaura coupling reaction in H(2)O/EtOH solvent with TON numbers up to 1.66 × 10(4). The yield of biaryls reached 99%. In this reaction, the catalyst was easily recovered and reused six times without a significant decrease in activity. The Royal Society of Chemistry 2020-05-01 /pmc/articles/PMC9053621/ /pubmed/35521468 http://dx.doi.org/10.1039/d0ra01190h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/
spellingShingle Chemistry
Liu, Cijie
Zheng, Lijuan
Xiang, Dexuan
Liu, Shasha
Xu, Wei
Luo, Qionglin
Shu, You
Ouyang, Yuejun
Lin, Hongwei
Palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for Suzuki–Miyaura coupling reactions
title Palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for Suzuki–Miyaura coupling reactions
title_full Palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for Suzuki–Miyaura coupling reactions
title_fullStr Palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for Suzuki–Miyaura coupling reactions
title_full_unstemmed Palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for Suzuki–Miyaura coupling reactions
title_short Palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for Suzuki–Miyaura coupling reactions
title_sort palladium supported on triazolyl-functionalized hypercrosslinked polymers as a recyclable catalyst for suzuki–miyaura coupling reactions
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9053621/
https://www.ncbi.nlm.nih.gov/pubmed/35521468
http://dx.doi.org/10.1039/d0ra01190h
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