Palladium nanoparticles decorated into a biguanidine modified-KIT-5 mesoporous structure: a recoverable nanocatalyst for ultrasound-assisted Suzuki-Miyaura cross-coupling

In the current research work, a new KIT-5-biguanidine-Pd(0) catalyst was prepared and applied to ultrasound-assisted Suzuki-Miyaura cross-coupling reactions using ultrasound waves at ambient temperature. The ultrasound-assisted method is a green and efficient method for C-C coupling. Many parameters...

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Bibliographic Details
Published in:RSC advances 2019-12, Vol.9 (71), p.41581-41590
Main Authors: Veisi, Hojat, Mirzaei, Amin, Mohammadi, Pourya
Format: Article
Language:English
Subjects:
Ambient temperature
Catalysts
Catalytic activity
Chemical reactions
Chemistry
Cross coupling
Irradiation
Mapping
Nanoparticles
Palladium
Ultrasonic imaging
Ultrasonic methods
Ultrasonic testing
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Summary:In the current research work, a new KIT-5-biguanidine-Pd(0) catalyst was prepared and applied to ultrasound-assisted Suzuki-Miyaura cross-coupling reactions using ultrasound waves at ambient temperature. The ultrasound-assisted method is a green and efficient method for C-C coupling. Many parameters of the Suzuki coupling reaction were examined, such as the irradiation time, the types of organic and inorganic bases, the types of aprotic and protic solvents, and the dosage (mol%) of catalyst. Also, the results showed that the yields from the ultrasound-assisted coupling reactions were higher than from non-irradiated reactions. The prepared catalyst was characterized HR-TEM, SEM-EDX-mapping, FT-IR, ICP-AAS, BET-BJH, and XRD studies. The stability and catalytic performance of the prepared catalyst were good, and it could be reused 6 times without catalytic activity loss for the Suzuki-Miyaura cross-coupling reaction.
ISSN:2046-2069
2046-2069
DOI:10.1039/c9ra08809a