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Palladium nanoparticles supported on Smopex® metal scavengers as catalyst for carbonylative Sonogashira reactions: Synthesis of α,β-alkynyl ketones

Paper ID Volume ID Publish Year Pages File Format Full-Text
39627 45829 2014 9 PDF Available
Title
Palladium nanoparticles supported on Smopex® metal scavengers as catalyst for carbonylative Sonogashira reactions: Synthesis of α,β-alkynyl ketones
Abstract

•Palladium nanoparticles (Pd NP) prepared by means of metal vapour synthesis technique.•Deposition of Pd NP on Smopex® metal scavengers.•Pd/Smopex®-234 catalyses selectively carbonylative Sonogashira reactions.•Preliminary tests indicate a heterogeneous behaviour.

Palladium nanoparticles supported on two Smopex® commercial metal scavengers (1% w/w) have been tested in the carbonylative Sonogashira reactions of aryl iodides with phenylacetylene. Their catalytic activity has been compared with those of more common catalysts (Pd/C, Pd/γ-Al2O3). Pd/Smopex®-234 resulted especially effective in the synthesis of alkynyl ketones even working with a low amount of palladium (0.2–0.5 mol%). Preliminary heterogeneity tests (i.e. hot filtration test, Pd leaching and recycle of the catalyst) have been performed in order to evaluate the catalytic behaviour of this system. The obtained results seem to indicate that Pd/Smopex®-234 could act as a truly heterogeneous catalyst.

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Keywords
Palladium nanoparticles; Heterogeneous catalysis; Sonogashira cross-coupling carbonylation; Metal vapour synthesis
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Palladium nanoparticles supported on Smopex® metal scavengers as catalyst for carbonylative Sonogashira reactions: Synthesis of α,β-alkynyl ketones
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 480, 20 June 2014, Pages 1–9
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