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Hydrotalcite-supported palladium nanoparticles as catalysts for the Suzuki reaction of aryl halides in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
39568 45827 2014 6 PDF Available
Title
Hydrotalcite-supported palladium nanoparticles as catalysts for the Suzuki reaction of aryl halides in water
Abstract

•Simple procedure for Suzuki reaction of arylhalides with phenylboronic acid in water.•Catalyst: nanoparticles of Pd(0) over hydrotalcite in the absence of any ligand.•Fluorobenzene can be coupled with phenylboronic acid in good yields.

A simple protocol for the Suzuki reaction of aryl halides with phenylboronic acid is proposed. The catalyst used consists of Pd(0) nanoparticles supported on an Mg/Al hydrotalcite. The catalyst was prepared and characterized in this work for the first time. Supported nanoparticles were obtained by depositing a Pd(II) salt onto the support and subsequently reducing it to Pd(0). The greatest novelties of the synthetic process are the use of a hydrogen donor (cyclohexene) to reduce the palladium precursor salt and that of water as solvent in the Suzuki reaction. Biphenyl conversions in the Suzuki reaction of phenylboronic acid with iodobenzene, bromobenzene and chlorobenzene were all excellent, and quantitative yields obtained within a very short time. Even fluorobenzene provided excellent results improving on many reported values for chelated Pd homogeneous catalysts. No homocoupling reaction was detected; also, although homogeneous and heterogeneous catalysis coexist, the catalyst can be recovered for reuse with no loss of activity.

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Keywords
Hydrotalcite; Hydrogen transfer; Palladium; Suzuki reaction
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Hydrotalcite-supported palladium nanoparticles as catalysts for the Suzuki reaction of aryl halides in water
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 485, 5 September 2014, Pages 196–201
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us