Polymeric PEG35k-Pd Nanoparticles: Efficient and Recyclable Catalyst for Reduction of Nitro Compounds

Abstract

The small size polymeric PEG35k-Pd nanoparticles are key attractions for catalysis due to their large surface to volume ratio, non-toxicity, inexpensive, thermal stability, and recoverability. Polymeric PEG35k-Pd nanoparticles in the absence of phosphine ligands are insensitive to the air and moisture and act as an active heterogeneous catalyst for the reduction of nitroarenes.

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GRAPHICAL ABSTRACT

Keywords:

• Catalysis
• palladium
• PEG35k
• recyclable

ACKNOWLEDGMENT

We are pleased to acknowledge financial support from the Department of Science and Technology, New Delhi [Grant No. SR/FTP/CS-62/2006], for this investigation.

Notes

Note. Reaction conditions: All reactions were carried out with nitroarenes (1 mmol), hydrazine hydrate (5 eq), and polymeric PEG35k-Pd NPs (1.0 mol%) at 90 °C for 1–2 h in open atmosphere. Products characterized by ¹H and ¹³C NMR and mass spectroscopic data.

^a Isolated yields.