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Communications
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Typical Procedure for Recycling Experiments
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The reaction conditions were set as above except that after
completion of the reaction, the catalyst was separated from the
reaction mixture by bench centrifugation for 5 min at 5000 rpm.
The THF layer was collected and the nanohybrid catalyst was
washed with THF (3×2 mL) by dispersion/centrifugation cycles. The
combined THF phases were evaporated and the nitrile product
purified as described above.
The pellet was further washed with water (2×1 mL) and with THF
(2×2 mL) using dispersion/centrifugation cycles. The recovered
nanohybrid catalyst was then used in subsequent experiments by
adding fresh substrate/reagent (4-methoxybenzothioamide/pow-
dered NaOH) and solvent (THF).
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Acknowledgements
Elumalai Gopi thanks the Enhanced Eurotalents program for
support. The “Service de Chimie Bioorganique et de Marquage”
belongs to the Laboratory of Excellence in Research on Medication
and Innovative Therapeutics (ANR-10-LABX-0033-LERMIT).
Conflict of Interest
The authors declare no conflict of interest.
Keywords: carbon nanotubes
·
gold nanoparticles
·
heterogeneous catalysis · thioamides · nitriles
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Manuscript received: March 1, 2019
Revised manuscript received: April 2, 2019
Version of record online: ■■■, ■■■■
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ChemCatChem 2019, 11, 1–5
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